Roof Drain Coupling

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Roof drain coupling.

Rubber coupling for roof drains used to attach to drain pipes. Use as a 2 to 3 increaser or a 3 to 2 reducer. They are composed of rubber with a stainless steel fastener for fitting. Be the first to review this product.

Rubber flexible expansion coupling used to attach roof drains to the drainpipe. Use as a 4 coupling if 31 8 flow is acceptable. 3 x 4 size fits over 3 or inside 4 schedule 40 dwv pipe. Use as a 3 to 4 increaser or 4 to 3 reducer.

Javascript seems to be disabled in your browser. Use as a 3 coupling if 2 1 4 flow is acceptable. Use as a 2 coupling. Use as a 3 coupling.

No hub cast iron high volume roof drain with ductile iron dome. Please select 2 inch 3 inch 3 93 4 inch 15 62. Be the first to review this product. Thunderbird products rubber couplings are made for use with our balcony drain and roof drain products.