Straight Union - Conduit to Conduit Thread Gender Female to Female Trade Size 3 1/2 in Compatible Conduit Type Vertical or Horizontal Rigid Conduit Compatible Conduit Trade Size 3 1/2 in Ends - Hazardous Fittings 3 1/2 in FNPT x 3 1/2 in FNPT Overall Length 3 3/8 in Overall Height 3 3/8 in Overall Width 3 3/8 in Iron Finish Chromate Coated Powder Coated Electroplated