Description
Get your pump back in working order with Captain O-Ring’s replacement U9-375 / 35505-1440 / SPX3000S / O-12 o-ring. This pack contains two o-rings to allow you to fix your leak and have a spare on hand for any future service needs. This o-ring goes on the trap cover of your pump (see photos for o-ring location in different models as well as the compatibility list below).
The U9-375 / 35505-1440 / SPX3000S / O-12 o-ring is compatible with the following Pentair/Sta-Rite pumps:
- Max-E-Glas II / Dura-Glas II / Max-E Pro Series
- Dyna-Glas / Dyna-Max Series / Dyna-Pro / Dyna-Pro E
- Dyna-Wave Series
- IntelliPro VS 3050 / IntelliFloXF
- WhisperFloXF
As well as the following Hayward pumps:
- Super II pump sp3000 series models sp3007(eeaz), sp3010(eeaz), sp3015(eeaz), sp3020(eeaz), sp3025(eeaz), sp3030(eeaz)
- Super II pump sp3000x series models sp3005x7(az), sp3007x10(az), sp3010x15(az), sp3015x20(az), sp3020x25(az), sp3025x30(az)
Important: Check with your unit’s manual/parts diagram before ordering to confirm that you need part number U9-375, 35505-1440, SPX3000S, or O-12.
O-Ring Dimensions (per OEM spec):
6.23” Inside Diameter (about 6-1/4”)
6.78” Outside Diameter (about 6-3/4”)
0.275” Thickness (slightly over 1/4”)
Pack contains two (2) o-rings in a resealable zipper bag with Captain O-Ring branded packaging.
Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!



