CFS O-Ring Compatible with Pentair 35505-1275, 2 Pack

CFS replacement O-ring, Buna-N (nitrile) 70 durometer. Size AS568-258: 5.984 in ID x 0.139 in cross-section (151.99 mm x 3.53 mm), about 6.262 in (159.05 mm) outside diameter. Sold in packs of 2 rings.

Fit and part numbers

• Compatible with Pentair 35505-1275 (also listed as SPX1580Z1): Pentair Sta-Rite multiport valves and Hayward Power-Flo pumps.

Measure your old ring first

Seal sizes vary by brand and by model year. Lay your old ring flat and measure the inside diameter and the thickness: it should be close to 5.984 in x 0.139 in. Old rings stretch or swell a little, so expect a small difference.

Wipe the groove clean and apply a thin film of silicone O-ring lubricant before fitting. Never use petroleum grease on a Buna-N ring.

Buna-N is the standard material for pump lids, unions, valves and filter tanks. Chlorinator and chemical feeder lids need a Viton (FKM) ring instead.

Shipping

Ships in 3-5 business days.

CFS is an independent brand. These are compatible replacement O-rings, not OEM parts. Part numbers and brand names are used only to show fit.