Pentair NPT Plug 1-1/2 in. | System 2 & System 3 Filters | 27001-0022 C9402 or compromised sealing surfaces —

or compromised sealing surfaces — common after years of seasonal pressure cycling — the entire filter vessel loses structural integrity and cannot maintain rated operating pressure

When servicing your TriStar VS pump

with a side rope anchor and stake into the ground alongside the pool

Self-contained programmable start/stop times

Replacing this low-cost screen at the same time as your cartridge elements is a straightforward way to keep the air relief system working correctly through the next service interval

Pentair NPT Plug 1-1/2 in. | System 2 & System 3 Filters | 27001-0022 C9402 or compromised sealing surfaces —The Pentair 1 1 2 in. NPT Plug (27001 0022) is the OEM replacement drain plug for Pentair Sta Rite System 2 and System 3 modular cartridge, D. E., and sand filters sealing the drain port on the filter tank body for service and winterization. IMPORTANT: MODEL YEAR REQUIREMENT PLD FILTER SYSTEMS For PLD Filter Systems base models 155331P and 155333P, this plug applies to units manufactured in 2009 and beyond. Verify your filter's manufacture date before