O ring kit for Lubing/Plasson/Big D regulator (2x big 1x small)

O ring kit for Lubing/Plasson/Big D regulator (2x big 1x small O rings)

When replacing these O rings on the older model of the pressure regulator valves, lubricate bore & O Rings before assembly with Vaseline or a Rubber Lubricant like Silicon grease.

Assemble with the small O Ring vertical, i.e. the operating handle horizontal.
Failure to do so may result in damaged seals.