Pentair Adapter Fitting | System 3 & System:2 Modular D.E. Filters | 24900-0509Z Swim Vests Never use petroleum-based lubricants —

Never use petroleum-based lubricants — they will degrade the O-ring and cause the seal to fail prematurely

The diffuser channels pressurized water exiting the impeller into the pump's discharge port

100% oil-free and water-soluble—safe for all spas and hot tubs

Before 06/17/19 Pentair SuperMax SUPERMAX VS Shaft Seal — Mfg

Pentair Adapter Fitting | System 3 & System:2 Modular D.E. Filters | 24900-0509Z Swim Vests Never use petroleum-based lubricants —The Pentair Adapter Fitting (24900 0509Z) is the OEM replacement adapter fitting for Pentair (formerly Sta Rite) System 3 and System: 2 Modular D. E. Filters. If your filter's fitting is cracked, stripped, or leaking at the base, this is the direct replacement. IMPORTANT: MODEL DATE RESTRICTION SYSTEM: 2 PLD SERIES This fitting is confirmed for System: 2 Modular D. E. Filter models PLD50 and PLD70 manufactured prior to October 2003 only. If your PLD50