Pentair O-Ring Replacement | SM & SMBW 4000 Series D.E. Filter | 071439Z Above Ground Pool Light Fixtures This flame sensor is designed

This flame sensor is designed to use with Hayward H-Series Universal Low NOx induced draft heater models H150FDN

If the valve chatters or fails to shut off completely after installation

Dimensions: Trap lid diameter is 6-7/8"

The CX880XREPAK4 4-Pack is available on Poolaroo and is the most economical way to replace a full set at once

controls algae growth

Pentair O-Ring Replacement | SM & SMBW 4000 Series D.E. Filter | 071439Z Above Ground Pool Light Fixtures This flame sensor is designedThe Pentair O Ring (071439Z) is the OEM replacement O ring for the SM and SMBW 4000 Series pool and spa D. E. filters. 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 O ring maintains the pressure seal within the SM and SMBW 4000 Series D. E. filter housing. A