Pentair #2-258 Buna-N Cover O-Ring | Sta-Rite 1-1/2" MultiPort Valve | 35505-1275 C5396 or eroded diffuser reduces hydraulic

or eroded diffuser reduces hydraulic efficiency and can cause the pump to lose prime entirely

If your heater is completely unresponsive at the control panel with no display activity

Apply a thin coat of Pentair-approved O-ring lubricant to the ring before reinstallation to ease seating and extend service life

Drop-in replacement for systems that use the C-4950 footprint with enhanced antimicrobial media protection

Pentair #2-258 Buna-N Cover O-Ring | Sta-Rite 1-1/2" MultiPort Valve | 35505-1275 C5396 or eroded diffuser reduces hydraulicThe Pentair 35505 1275 is the OEM replacement #2 258 Buna N cover O ring for the Sta Rite 1 1 2" MultiPort Valve, specifically Models WC112 148 and WC112 148A. IMPORTANT: LUBRICATION REQUIRED SOLD SEPARATELY Always lubricate this O ring with a silicone based lubricant before installation. We carry the Pentair R172351 Lifeguard Silicone Lubricant the OEM matched product for Pentair equipment. This cover O ring seals the valve cover on the Sta Rite 1 1