About This

• STOP DRIPS AT THE HOUSING SEAM - A fresh O-ring restores the water-tight seal between the cap and the bottom of the housing, which is where a filter housing most often starts to weep after a few cartridge changes.
• FITS PENTAIR OMNIFILTER U24 AND U25 - The OK25 is the O-ring specified in the Pentair OMNIFilter U24 and U25 installation manuals for 10-inch standard whole house filter housings.
• SEATS IN THE GROOVE ABOVE THE THREADS - It rides in the groove above the housing threads, and seating it level and flat is what makes the seal hold, so check it is sitting square before you tighten the sump.
• SWAP IT WHEN YOU SWAP CARTRIDGES - Wipe the old lubricant away and inspect the ring for cuts, scratches or stretching; a nicked O-ring is the usual reason a housing leaks right after a filter change.
• KEEP A SPARE ON THE SHELF - Storing a spare alongside your replacement cartridges means a damaged ring never turns a ten-minute filter change into an unplanned trip to the hardware store.

Overview

• Material : Rubber
• Item Diameter : 25 millimeters
• Brand : OMNIFilter
• Nominal Outside Diameter : 25 millimeters
• UPC : 047087304041