Comparison : Item # PBU1/4H, SS 316L Bulkhead Union l 1/4”
Item # PBU1/2H, SS 316L Bulkhead Union 1/2”
Item # PBU1/4E, SS 316L Bulkhead Union 1/4”
Item # PBU1/2E, SS 316L Bulkhead Union 1/2”