MASC - Special expansion cone for rainwater downpipes
MASC - Special expansion cone for rainwater downpipes - 76 mm is backordered and will ship as soon as it is back in stock.
Couldn't load pickup availability

As roofing professionals, we know how important precise work is on site – especially when it comes to roof drainage. Anyone who has ever worked with downpipes from different manufacturers knows the problem: The pipes often differ slightly in diameter. This is where the MASC special expander cone for downpipes comes into play – a truly professional tool that no toolbox should be without.
Purpose & Sizes
The adjustable coner from MASC was specially developed to compensate for slight tolerances in pipe diameters. Due to production reasons, these often fluctuate by one to two millimeters – which can quickly lead to problems during assembly or installation. The special expanding coner enables precise and gentle expansion of the pipe ends, ensuring a perfect fit. Whether 75, 76, 80, 87, 100, or 120 mm – the coner is available in all these diameters and thus covers the common sizes in the plumbing and roofing sectors.
Three clear advantages of the MASC special expansion cone
- Flexibility through adjustability : With a tolerance compensation option of +/- 1 mm, almost all common pipes can be machined to a precise fit – a real plus in daily use on the construction site.
- Professional workmanship : The high-quality workmanship makes working with the tool particularly pleasant. The tool sits comfortably in the hand, is durable, and is built to withstand the rigors of everyday construction work – typical of solid roofing accessories .
- Time savings and safety : The precise fit of the pipes not only simplifies installation but also increases leak tightness. This saves time and ensures consistently reliable results.
Video: MASC/DACHFREUNDE - ORIGINAL MASC pipe expansion coner
Whether as part of your plumbing tools , in the area of roofing tools or in general in professional roofing supplies - the MASC special expanding cone is a must-have for every company.
And best of all: You can conveniently order the MASC special expansion cone directly here in the roofing purchasing department at Dach PRO . This gives you, as a professional, access not only to top-quality tools, but also expert advice and fast shipping – so you're always perfectly equipped on the construction site.