TOPWET retrofit drain with an integrated sleeve of modified bitumen strip with a protective dome. Lenght 16“ option of extension up to 60“ on request.
For connection to piping of diameter | ||
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TW RETRO 3" BIT | 3" - 4" |
Drawing documentation |
TW RETRO 4" BIT | 4" - 4 1/4" |
Drawing documentation |
TW RETRO 5" BIT | 4 1/2" - 5" |
Drawing documentation |
TW RETRO 6" BIT | 5 3/4" - 6" |
Drawing documentation |