Pentair O-Ring for JV3 (2 Pack), EF07

The Pentair EF07 is the wall fitting O-ring for the JV3 Jet Vac pool cleaner. It is supplied two to a pack.

Where it sits

This ring seals the connection at the wall fitting, the point where the cleaner joins the pool wall. Rubber hardens and takes a set after a season or two of pool chemistry and sun, and once it does the joint stops sealing the way it should.

Fitting it

Because the part comes as a pair, the second ring is there for the next service. Clean the groove out before the new ring goes in; grit left behind is the usual reason a fresh O-ring still leaks.