Home → Tank Trailer Products → Fittings → Cam & Groove → Part DA → Stainless Steel → Cam & Groove - Stainless Steel - 3" Part D x 2" Part A - 1/2" Blowdown Assembly with 1/2" Standard Port Ball Valve (BVS-SP-NPT-050) and 1/2" Male End Crows foot (QC-SS-ME-050) Loosely Attached