Pentair O Ring For Air Bleeder Adapter -154661.
Bleeder replacement. Fits Pentair Nautilus and Nautilus Plus pool/spa D.E. filter models NS24, NS36, NS48, NS60, NS72, NSP-24, NSP-36, NSP-48,...
Pentair O-Ring 2 Inch Bulkhead -154492
Bulkhead o-ring replacement. Fits Pentair FNS and Nautilus pool/spa D.E. filters
Also fits Pentair Triton II pool and spa sand filter models TR100C,...