use of backstops can be found in the installation instructions

Denne velafbalancerede hjelm er ca

Rullelængde: 275 m

light tool

Used for: Copper

Tagbrønd Ø90x250 mm Stål/APP O-ring Ø90x10 mm endebund zink kvartrund use of backstops can beRoof well vertical Dimension: 90x250 mm mm O ring: 90x10 mm Material tube protection ring: Acid resistant steel AISI 316 Flange material: Stainless steel AISI 304 Diaphragm type: Steel APP Certification: TV Rheinland according to DS EN 1253 Roof drain is used for vertical drainage of a flat roof, with roofing felt or roofing foil. The roof well ensures a watertight connection between the roof surface and the downpipe under the roof surface Data sheet