HL62.1/1Product overview / Roof drains / vertical / clamping ringflat-roof drain DN110 with clamping ring, heated (10-30W/230V)  HL62.1/2Product overview / Roof drains / vertical / clamping ringflat-roof drain DN125 with clamping ring, heated (10-30W/230V)  HL62.1/5Product overview / Roof drains / vertical / clamping ringflat-roof drain DN160 with clamping ring, heated (10-30W/230V)  HL62.1/7Product overview / Roof drains / vertical / clamping ringflat-roof drain DN75 with clamping ring, heated (10-30W/230V)  HL62.1B/1Product overview / Roof drains / vertical / clamping ringflat-roof drain DN110 with clamping ring, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1B/2Product overview / Roof drains / vertical / clamping ringflat-roof drain DN125 with clamping ring, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1B/5Product overview / Roof drains / vertical / clamping ringflat-roof drain DN160 with clamping ring, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1B/7Product overview / Roof drains / vertical / clamping ringflat-roof drain DN75 with clamping ring, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1BF/1Product overview / Roof drains / verticalFlat-roof drain DN110 vertical with PP-flange and heating /10-30W/230V), walkable  HL62.1BF/2Product overview / Roof drains / verticalFlat-roof drain DN125 vertical with PP-flange and heating /10-30W/230V), walkable  HL62.1BF/7Product overview / Roof drains / verticalFlat-roof drain DN75 vertical with PP-flange and heating /10-30W/230V), walkable  HL62.1BH/1Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN110 with bitumen membrane, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1BH/2Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN125 with bitumen membrane, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1BH/5Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN160 with bitumen membrane, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1BH/7Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN75 with bitumen membrane, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1BP/1Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN110 with PVC collar, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1BP/2Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN110 with PVC collar, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1BP/5Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN160 with PVC collar, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1BP/7Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN75 with PVC collar, heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL62.1F/1Product overview / Roof drains / verticalFlat-roof drain DN110 vertical with PP-flange and heating /10-30W/230V).  HL62.1F/2Product overview / Roof drains / verticalFlat-roof drain DN125 vertical with PP-flange and heating /10-30W/230V).  HL62.1F/7Product overview / Roof drains / verticalFlat-roof drain DN75 vertical with PP-flange and heating /10-30W/230V).  HL62.1FSafe/1Product overview / Roof drains / verticalSafety roof drain DN110 with PP collar, heating and height-adjustable inlet edge  HL62.1FSafe/2Product overview / Roof drains / verticalSafety roof drain DN125 with PP collar, heating and height-adjustable inlet edge  HL62.1FSafe/7Product overview / Roof drains / verticalSafety roof drain DN75 with PP collar, heating and height-adjustable inlet edge  HL62.1H/1Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN110 with bitumen membrane, heated (10-30W/230V)  HL62.1H/2Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN125 with bitumen membrane, heated (10-30W/230V)  HL62.1H/5Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN160 with bitumen membrane, heated (10-30W/230V)  HL62.1H/7Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN75 with bitumen membrane, heated (10-30W/230V)  HL62.1HSafe/1Product overview / Roof drains / vertical / bitumen membraneSafety roof drain DN110 with bitumen membrane, heating and height-adjustable inlet edge  HL62.1HSafe/2Product overview / Roof drains / vertical / bitumen membraneSafety roof drain DN125 with bitumen membrane, heating and height-adjustable inlet edge  HL62.1HSafe/5Product overview / Roof drains / vertical / bitumen membraneSafety roof drain DN160 with bitumen membrane, heating and height-adjustable inlet edge  HL62.1HSafe/7Product overview / Roof drains / vertical / bitumen membraneSafety roof drain DN75 with bitumen membrane, heating and height-adjustable inlet edge  HL62.1P/1Product overview / Roof drains / vertical / PVC-collarFlat-roof drain DN110 with PVC collar, heated (10-30W/230V)  HL62.1P/2Product overview / Roof drains / vertical / PVC-collarFlat-roof drain DN125 with PVC collar, heated (10-30W/230V)  HL62.1P/5Product overview / Roof drains / vertical / PVC-collarFlat-roof drain DN160 with PVC collar, heated (10-30W/230V)  HL62.1P/7Product overview / Roof drains / vertical / PVC-collarFlat-roof drain DN75 with PVC collar, heated (10-30W/230V)  HL62.1PSafe/1Product overview / Roof drains / vertical / PVC-collarSafety roof drain DN110 with PVC collar, heating and height-adjustable inlet edge  HL62.1PSafe/2Product overview / Roof drains / vertical / PVC-collarSafety roof drain DN125 with PVC collar, heating and height-adjustable inlet edge  HL62.1PSafe/5Product overview / Roof drains / vertical / PVC-collarSafety roof drain DN160 with PVC collar, heating and height-adjustable inlet edge  HL62.1PSafe/7Product overview / Roof drains / vertical / PVC-collarSafety roof drain DN75 with PVC collar, heating and height-adjustable inlet edge  HL62.1Safe/1Product overview / Roof drains / vertical / clamping ringSafety roof drain DN110 with heating and height-adjustable inlet edge  HL62.1Safe/2Product overview / Roof drains / vertical / clamping ringSafety roof drain DN125 with heating and height-adjustable inlet edge  HL62.1Safe/5Product overview / Roof drains / vertical / clamping ringSafety roof drain DN160 with heating and height-adjustable inlet edge  HL62.1Safe/7Product overview / Roof drains / vertical / clamping ringSafety roof drain DN75 with heating and height-adjustable inlet edge  HL62/1Product overview / Roof drains / vertical / clamping ringFlat-roof drain DN110 with clamping ring  HL62/2Product overview / Roof drains / vertical / clamping ringFlat-roof drain DN125 with clamping ring  HL62/5Product overview / Roof drains / vertical / clamping ringFlat-roof drain DN160 with clamping ring  HL62/7Product overview / Roof drains / vertical / clamping ringFlat-roof drain DN75 with clamping ring  HL62B/1Product overview / Roof drains / vertical / clamping ringflat-roof drain DN110 with clamping ring. Walkable - 148x148mm/137x137mm  HL62B/2Product overview / Roof drains / vertical / clamping ringflat-roof drain DN125 with clamping ring. Walkable - 148x148mm/137x137mm  HL62B/5Product overview / Roof drains / vertical / clamping ringflat-roof drain DN160 with clamping ring. Walkable - 148x148mm/137x137mm  HL62B/7Product overview / Roof drains / vertical / clamping ringflat-roof drain DN75 with clamping ring. Walkable - 148x148mm/137x137mm  HL62BF/1Product overview / Roof drains / verticalFlat-roof drain DN110 vertical with PP-flange, walkable. Frame 137mm x 137mm, grate 148mm x 148mm.  HL62BF/2Product overview / Roof drains / verticalFlat-roof drain DN125 vertical with PP-flange, walkable. Frame 137mm x 137mm, grate 148mm x 148mm.  HL62BF/7Product overview / Roof drains / verticalFlat-roof drain DN75 vertical with PP-flange, walkable. Frame 137mm x 137mm, grate 148mm x 148mm.  HL62BH/1Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN110 with bitumen membrane. Walkable - 148x148mm/137x137mm  HL62BH/2Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN125 with bitumen membrane. Walkable - 148x148mm/137x137mm  HL62BH/5Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN160 with bitumen membrane. Walkable - 148x148mm/137x137mm  HL62BH/7Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN75 with bitumen membrane. Walkable - 148x148mm/137x137mm  HL62BP/1Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN110 with PVC collar. Walkable - 148x148mm/137x137mm  HL62BP/2Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN125 with PVC collar. Walkable - 148x148mm/137x137mm  HL62BP/5Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN160 with PVC collar. Walkable - 148x148mm/137x137mm  HL62BP/7Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN75 with PVC collar. Walkable - 148x148mm/137x137mm  HL62F/1Product overview / Roof drains / verticalFlat-roof drain DN110 vertical with PP-flange.  HL62F/2Product overview / Roof drains / verticalFlat-roof drain DN125 vertical with PP-flange.  HL62F/7Product overview / Roof drains / verticalFlat-roof drain DN75 vertical with PP-flange.  HL62FSafe/1Product overview / Roof drains / verticalSafety roof drain DN110 with PP collar and height-adjustable inlet edge  HL62FSafe/2Product overview / Roof drains / verticalSafety roof drain DN125 with PP collar and height-adjustable inlet edge  HL62FSafe/7Product overview / Roof drains / verticalSafety roof drain DN75 with PP collar and height-adjustable inlet edge  HL62H/1Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN110 with bitumen membrane  HL62H/2Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN125 with bitumen membrane  HL62H/5Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN160 with bitumen membrane  HL62H/7Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DN75 with bitumen membrane  HL62HSafe/1Product overview / Roof drains / vertical / bitumen membraneSafety roof drain DN110 with bitumen membrane and height-adjustable inlet edge  HL62HSafe/2Product overview / Roof drains / vertical / bitumen membraneSafety roof drain DN125 with bitumen membrane and height-adjustable inlet edge  HL62HSafe/5Product overview / Roof drains / vertical / bitumen membraneSafety roof drain DN160 with bitumen membrane and height-adjustable inlet edge  HL62HSafe/7Product overview / Roof drains / vertical / bitumen membraneSafety roof drain DN75 with bitumen membrane and height-adjustable inlet edge  HL62P/1Product overview / Roof drains / vertical / PVC-collarFlat-roof drain DN110 with PVC collar  HL62P/2Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN125 with PVC collar  HL62P/5Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN160 with PVC collar  HL62P/7Product overview / Roof drains / vertical / PVC-collarflat-roof drain DN75 with PVC collar  HL62PSafe/1Product overview / Roof drains / vertical / PVC-collarSafety roof drain DN110 with PVC collar and height-adjustable inlet edge  HL62PSafe/2Product overview / Roof drains / vertical / PVC-collarSafety roof drain DN125 with PVC collar and height-adjustable inlet edge  HL62PSafe/5Product overview / Roof drains / vertical / PVC-collarSafety roof drain DN160 with PVC collar and height-adjustable inlet edge  HL62PSafe/7Product overview / Roof drains / vertical / PVC-collarSafety roof drain DN75 with PVC collar and height-adjustable inlet edge  HL62Safe/1Product overview / Roof drains / vertical / clamping ringSafety roof drain DN110 with height-adjustable inlet edge  HL62Safe/2Product overview / Roof drains / vertical / clamping ringSafety roof drain DN125 with height-adjustable inlet edge  HL62Safe/5Product overview / Roof drains / vertical / clamping ringSafety roof drain DN160 with height-adjustable inlet edge  HL62Safe/7Product overview / Roof drains / vertical / clamping ringSafety roof drain DN75 with height-adjustable inlet edge  HL63.1/1Product overview / Roof drains / vertical / clamping ringflat-roof drain DrainBox DN110 with clamping ring, heated (10-30W/230V)  HL63.1/2Product overview / Roof drains / vertical / clamping ringflat-roof drain DrainBox DN125 with clamping ring, heated (10-30W/230V)  HL63.1/7Product overview / Roof drains / vertical / clamping ringflat-roof drain DrainBox DN75 with clamping ring, heated (10-30W/230V)  HL63.1H/1Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DrainBox DN110 with bitumen membrane, heated (10-30W/230V)  HL63.1H/2Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DrainBox DN125 with bitumen membrane, heated (10-30W/230V)  HL63.1H/7Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DrainBox DN75 with bitumen membrane, heated (10-30W/230V)  HL63.1P/1Product overview / Roof drains / vertical / PVC-collarflat-roof drain DrainBox DN110 with PVC collar, heated (10-30W/230V)  HL63.1P/2Product overview / Roof drains / vertical / PVC-collarflat-roof drain DrainBox DN125 with PVC collar, heated (10-30W/230V)  HL63.1P/7Product overview / Roof drains / vertical / PVC-collarflat-roof drain DrainBox DN75 with PVC collar, heated (10-30W/230V)  HL63/1Product overview / Roof drains / vertical / clamping ringflat-roof drain DrainBox DN110 with clamping ring  HL63/2Product overview / Roof drains / vertical / clamping ringflat-roof drain DrainBox DN125 with clamping ring  HL63/7Product overview / Roof drains / vertical / clamping ringflat-roof drain DrainBox DN75 with clamping ring  HL63H/1Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DrainBox DN110 with bitumen membrane  HL63H/2Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DrainBox DN125 with bitumen membrane  HL63H/7Product overview / Roof drains / vertical / bitumen membraneflat-roof drain DrainBox DN75 with bitumen membrane  HL63P/1Product overview / Roof drains / vertical / PVC-collarflat-roof drain DrainBox DN110 with PVC collar  HL63P/7Product overview / Roof drains / vertical / PVC-collarflat-roof drain DrainBox DN75 with PVC collar  HL64Product overview / Roof drains / horizontal / clamping ringflat-roof drain DN75/110 horizontal with clamping ring  HL64.1Product overview / Roof drains / horizontal / clamping ringflat-roof drain DN75/110 horizontal with clamping ring heated (10-30W/230V)  HL64.1BProduct overview / Roof drains / horizontal / clamping ringflat-roof drain DN75/110 horizontal with clamping ring heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL64.1BF/1Product overview / Roof drains / horizontalFlat-roof drain DN110 horizontal with PP-flange and heating /10-30W/230V), walkable  HL64.1BF/7Product overview / Roof drains / horizontalFlat-roof drain DN75 horizontal with PP-flange and heating /10-30W/230V), walkable  HL64.1BHProduct overview / Roof drains / horizontal / bitumen membraneflat-roof drain DN75/110 horizontal with bitumen membrane heated (10-30W/230V). Walkable - 148x148mm/137x137mm  HL64.1BP/1Product overview / Roof drains / horizontal / PVC-collarFlat-roof drain DN110 horizontal with PVC-flange and heating /10-30W/230V), walkable  HL64.1BP/7Product overview / Roof drains / horizontal / PVC-collarFlat-roof drain DN75 horizontal with PVC-flange and heating /10-30W/230V), walkable  HL64.1F/1Product overview / Roof drains / horizontalFlat-roof drain DN110 horizontal, with PP-flange and heating /10-30W/230V).  HL64.1F/7Product overview / Roof drains / horizontalFlat-roof drain DN75 horizontal, with PP-flange and heating /10-30W/230V).  HL64.1FSafe/1Product overview / Roof drains / horizontalSafety roof drain DN110, horizontal, with PP collar, heating and height-adjustable inlet edge  HL64.1FSafe/7Product overview / Roof drains / horizontalSafety roof drain DN75, horizontal, with PP collar, heating and height-adjustable inlet edge  HL64.1HProduct overview / Roof drains / horizontal / bitumen membraneflat-roof drain DN75/110 horizontal with bitumen membrane heated (10-30W/230V)  HL64.1HSafeProduct overview / Roof drains / horizontal / bitumen membraneSafety roof drain DN75/110, horizontal, with bitumen membrane, heating and height-adjustable inlet edge  HL64.1P/1Product overview / Roof drains / horizontal / PVC-collarFlat-roof drain DN110 horizontal, with PVC-flange and heating /10-30W/230V).  HL64.1P/7Product overview / Roof drains / horizontal / PVC-collarFlat-roof drain DN75 horizontal, with PVC-flange and heating /10-30W/230V).  HL64.1PSafe/1Product overview / Roof drains / horizontal / PVC-collarSafety roof drain DN110, horizontal, with PVC collar, heating and height-adjustable inlet edge  HL64.1PSafe/7Product overview / Roof drains / horizontal / PVC-collarSafety roof drain DN75, horizontal, with PVC collar, heating and height-adjustable inlet edge  HL64.1SafeProduct overview / Roof drains / horizontal / clamping ringSafety roof drain DN75/110, horizontal, with heating and height-adjustable inlet edge  HL64BProduct overview / Roof drains / horizontal / clamping ringflat-roof drain DN75/110 horizontal with clamping ring. Walkable - 148x148mm/137x137mm  HL64BF/1Product overview / Roof drains / horizontalFlat-roof drain DN110 horizontal with PP-flange, walkable. Frame 137mm x 137mm, grate 148mm x 148mm.  HL64BF/7Product overview / Roof drains / horizontalFlat-roof drain DN75 horizontal with PP-flange, walkable. Frame 137mm x 137mm, grate 148mm x 148mm.  HL64BHProduct overview / Roof drains / horizontal / bitumen membraneflat-roof drain DN75/110 horizontal with bitumen membrane. Walkable - 148x148mm/137x137mm  HL64BP/1Product overview / Roof drains / horizontal / PVC-collarFlat-roof drain DN110 horizontal with PVC-flange, walkable. Frame 137mm x 137mm, grate 148mm x 148mm.  HL64BP/7Product overview / Roof drains / horizontal / PVC-collarFlat-roof drain DN75 horizontal with PVC-flange, walkable. Frame 137mm x 137mm, grate 148mm x 148mm.  HL64F/1Product overview / Roof drains / horizontalFlat-roof drain DN110 horizontal with PP-flange.  HL64F/7Product overview / Roof drains / horizontalFlat-roof drain DN75 horizontal with PP-flange.  HL64FPowerProduct overview / Roof drains / horizontalSafety roof drain "Power" DN75 with PP collar  HL64FPowerSafeProduct overview / Roof drains / horizontalSafety roof drain "Powersafe" DN75, horizontal, with PP collar and height-adjustable inlet edge  HL64FSafe/1Product overview / Roof drains / horizontalSafety roof drain DN110, horizontal, with PP collar and height-adjustable inlet edge  HL64FSafe/7Product overview / Roof drains / horizontalSafety roof drain DN75, horizontal, with PP collar and height-adjustable inlet edge  HL64HProduct overview / Roof drains / horizontal / bitumen membraneflat-roof drain DN75/110 horizontal with bitumen membrane  HL64HPowerProduct overview / Roof drains / horizontal / bitumen membraneSafety roof drain "Power" DN75 with bitumen membrane  HL64HPowerSafeProduct overview / Roof drains / horizontal / bitumen membraneSafety roof drain "Powersafe" DN75, horizontal, with bitumen membrane and height-adjustable inlet edge  HL64HSafeProduct overview / Roof drains / horizontal / bitumen membraneSafety roof drain DN75/110, horizontal, with bitumen membrane, heating and height-adjustable inlet edge  HL64P/1Product overview / Roof drains / horizontal / PVC-collarFlat-roof drain DN110 horizontal with PVC-flange.  HL64P/7Product overview / Roof drains / horizontal / PVC-collarFlat-roof drain DN75 horizontal with PVC-flange.  HL64PPowerProduct overview / Roof drains / horizontal / PVC-collarSafety roof drain "Power" DN75 with PVC collar  HL64PPowerSafeProduct overview / Roof drains / horizontal / PVC-collarSafety roof drain "Powersafe" DN75, horizontal, with PVC collar and height-adjustable inlet edge  HL64PSafe/1Product overview / Roof drains / horizontal / PVC-collarSafety roof drain DN110, horizontal, with PVC collar and height-adjustable inlet edge  HL64PSafe/7Product overview / Roof drains / horizontal / PVC-collarSafety roof drain DN75, horizontal, with PVC collar and height-adjustable inlet edge  HL64SafeProduct overview / Roof drains / horizontal / clamping ringSafety roof drain DN75/110, horizontal, with height-adjustable inlet edge  HL65Product overview / Roof drains / vertical / clamping ringextension 300mm/d 125mm with clamping ring  HL65FProduct overview / Roof drains / extensionsExtension 345mm / d125mm with PP-flange.  HL65HProduct overview / Roof drains / vertical / bitumen membraneextension 300mm/d 125mm with bitumen membrane  HL65PProduct overview / Roof drains / vertical / PVC-collarextension 345mm/d 125mm with PVC collar  HL65PEProduct overview / Roof drains / extensionsExtension with PE-flange  HL69/1Product overview / Roof drains / vertical / clamping ringflat-roof renovation drain for DN110  HL69/2Product overview / Roof drains / vertical / clamping ringflat-roof renovation drain for DN125  HL69/5Product overview / Roof drains / vertical / clamping ringflat-roof renovation drain for DN160  HL69/7Product overview / Roof drains / vertical / clamping ringFlat-roof renovation drain for DN75  HL69H/1Product overview / Roof drains / vertical / bitumen membraneflat-roof renovation drain for DN110 with bitumen membrane  HL69H/2Product overview / Roof drains / vertical / bitumen membraneflat-roof renovation drain for DN125 with bitumen membrane  HL69H/5Product overview / Roof drains / vertical / bitumen membraneflat-roof renovation drain for DN160 with bitumen membrane  HL69H/7Product overview / Roof drains / vertical / bitumen membraneflat-roof renovation drain for DN75 with bitumen membrane  HL69P/1Product overview / Roof drains / vertical / PVC-collarflat-roof renovation drain with PVC collar for DN110  HL69P/2Product overview / Roof drains / vertical / PVC-collarflat-roof renovation drain with PVC collar for DN125  HL69P/5Product overview / Roof drains / vertical / PVC-collarflat-roof renovation drain with PVC collar for DN160  HL69P/7Product overview / Roof drains / vertical / PVC-collarflat-roof renovation drain with PVC collar for DN75  HL80.3Product overview / Roof drains / ball-joint / flangeflat-roof drain DN50/75 ball-joint with leaf strainer  HL80.3HProduct overview / Roof drains / vertical / bitumen membraneflat-roof drain DN50/75 ball-joint with bitumen membrane and leaf strainer  HL160Product overview / Roof drains / attachmentsgravel guard d 150mm  HL161Product overview / Roof drains / attachmentsDrainage element for series HL65  HL170Product overview / Roof drains / attachmentsflat grate d 150mm  HL175Product overview / Roof drains / attachmentsdomed grate stainless steel  HL603/1Product overview / Roof drains / verticalflap seal for external down pipes DN110  HL603/5Product overview / Roof drains / verticalflap seal for external down pipes DN160  HL635NProduct overview / Roof drainsDrainage and inspection chamber for green roofs, gravel roofs and terraces. Including plastic frame and plastic grate  HL635N.0Product overview / Roof drainsDrainage and inspection chamber for green roofs, gravel roofs and terraces. Including plastic frame, without grate.  HL636NProduct overview / Roof drainsExtension for drainage and inspection chamber HL635N(.0)