No-hub cast iron soil fittings for DWV, joined with a neoprene gasket inside a stainless shielded coupling and torqued to spec — no lead, no oakum, no caulking. Sizes 1-1/2" through 15", with 2", 3", 4" and 6" the volume sizes.
Cast iron is specified over plastic in DWV mainly for sound. A cast iron stack running behind a bedroom wall is dramatically quieter than PVC carrying the same discharge, which is why it stays standard in multifamily and hospitality even where plastic is permitted.
The range covers sanitary tees and wyes including reducing and double configurations, concentric reducers, couplings, closet bends and transition fittings from cast iron to plastic, steel and clay. Connection patterns are NH x NH, three-way and four-way, plus NH x FPT and NH x flange where the system transitions.
Couplings are sold separately and are the part that determines the joint rating — heavy-duty shielded couplings are required for above-ground use in many jurisdictions.
Predominantly Tyler Pipe, with MIFAB.











































































