Hayward Gauge Adapter O-Ring for Perflex Extended-Cycle DE Filters W3EC50AC W3EC65A W3EC75A | ECX1287 AS100P Pentair MasterTemp 250 — MasterTemp

Pentair MasterTemp 250 — MasterTemp Series 250NA

Reuse your existing screws if they are in serviceable condition

When the bag degrades

Before installing the new sweep hose kit

Hayward Gauge Adapter O-Ring for Perflex Extended-Cycle DE Filters W3EC50AC W3EC65A W3EC75A | ECX1287 AS100P Pentair MasterTemp 250 — MasterTempThe Hayward Gauge Adapter O Ring (ECX1287) is the OEM replacement sealing O ring for the pressure gauge adapter on Perflex Extended Cycle DE filters. IMPORTANT: LUBRICATION REQUIRED SOLD SEPARATELY Always lubricate this O ring with a silicone based lubricant before installation. Browse our Pool Plumbing Lubricants for a compatible silicone lubricant. This O ring seals the gauge adapter fitting on the filter tank, preventing air ingestion and water