raising piece type 630 DallBit
used with roof drain types 62 and 64, with factory-fitted collar of 5.0 mm modified bitumen membrane, 500 x 500 mm, welded to the flange and clamped with a stainless steel clamp ring
specification:
- seal
- can be extended with DN 125 plastic pipe, cut to suit on site for insulation 50 - 250 mm
material:
polypropylene, UV-stabilized