Pentair NPT to Buttress Adaptor | Meteor, Sand Dollar & Cristal-Flo II Filter Systems | 354588Z Inlet & Skimmer Plugs can differentiate between Free Chlorine

can differentiate between Free Chlorine vs Combined Chlorine

With injection-molded resin construction

4" plumbing

the PA100S delivers a uniform pore structure that resists channeling and maintains consistent filtration performance across the full service life of the cartridge — no shortcuts

easy-to-read LCD screen

Pentair NPT to Buttress Adaptor | Meteor, Sand Dollar & Cristal-Flo II Filter Systems | 354588Z Inlet & Skimmer Plugs can differentiate between Free ChlorineOEM Filter Adaptor for Pentair Meteor, Sand Dollar & Cristal Flo II Systems The Pentair NPT to Buttress Adaptor (354588Z) is the OEM replacement adaptor for Pentair Meteor, Sand Dollar, and Cristal Flo II filter systems. It provides the threaded interface between the standard NPT (male pipe thread) connection and the buttress thread fitting on the filter tank, restoring a secure, leak free seal at the filter's plumbing connection point. What It Does