3" x 4" Adapter HxSocket Cast Iron Increaser PVC Plain End Drain Waste and Vent Joint with Compression Gasket

PVC-DWV (drain, waste and vent) fittings conform to ASTM Standards D-2665 and D-3311. ASTM standards provide the material and test requirements as well as the fittinggeometries for PVC-DWV (drain, waste and vent) fittings. Fittings can be transitioned to other DWV materials.