Note: This 4AN nipple fits new style NX Lightning 45 bottle valves.

New style Lightning 45 bottle valves can be identified by the machined flats around the dual 1/8npt gauge ports. The new Lightning 45 bottle valve features a female 6AN O-ring discharge port in the valve body. For 4AN feedlines use nipple part# 11721. For 6AN feedlines use nipple part# 11722. For 8AN feedlines use nipple part# 11723.

Old style Lightning 45 bottle valves can be identified by the absence of machined flats around the 1/8npt gauge and push ports. The old style Lightning 45 bottle valve features a female 6AN discharge port in the valve body. For 4AN feedlines use nipple part# 11717. For 6AN feedlines use nipple part# 11716.