Jandy Clamp Ring Knob Bolt Assembly

The Jandy R0357500 is the genuine knob and bolt assembly for the clamp ring on Jandy cartridge and DE filters. The clamp ring holds the two tank halves together, and this knob is what you tighten to seal it after a cartridge or grid service.

Where it is used

Jandy fits the same assembly on the CV340, CV460 and CV580 and the CL340, CL460 and CL580 cartridge filters, and on the DEV series and DEL48 and DEL60 DE filters.

When to replace it

A cracked knob, a bolt with stripped threads, or a knob that will not pull the ring tight enough to stop a leak at the tank seam are the usual reasons. The knob and bolt come as one part, so there is nothing else to match up.