OPW 1004D3 Coupler Parts – Stuff Box O-Ring (larger) GFLT Viton
The 1004D3 is the standard in “drip-less” bottom-loading couplers and a proven performer at major oil terminals worldwide. The 1004D3 mates with all 4″ bottom-loading adapters built in accordance with API RP-1004 requirements to significantly reduce liquid loss at disconnect.
