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805-0448 / WC9-3 O-Rings for Waterway ProClean, Pentair, Jacuzzi 78105 (2 Pack)

$13.79
In Stock. Ships within one business day.
  • O-Ring Part Number: 805-0448 (also replaces 78105, and WC9-3)
  • Compatible with Waterway ProClean Pool Filters (models PCCF-075, PCCF-100, PCCF-125, PCCF-150, PCCF-175, PCCF-200) as well as replacement for Jacuzzi 78105 in J-C150 Filters and replacement for Pentair WC9-3 in Posi-Flo II filters.
  • Approximate O-Ring Dimensions: 9.48” Inside Diameter, 10.05” Outside Diameter, 0.275” Thickness.
  • Package contains two (2) o-ring gasket seals. Molded from OEM spec synthetic rubber for long lasting performance and durability.
  • Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!
O-Ring Part Number: 805-0448 / WC9-3
Compatible With (Waterway): Waterway ProClean Pool Filters (models PCCF-075, PCCF-100, PCCF-125, PCCF-150, PCCF-175, PCCF-200)
Compatible With (Pentair): Pentair Sta-Rite Posi-Flo II pool and spa cartridge filters (models PTM50, PTM70, PTM100, and the PTM135 Series)
Compatible With (Jacuzzi): Replacement for the discontinued 78105 o-ring, compatible with Jacuzzi J-C150 filters.
O-Ring Inside Diameter: 9.48” Inside Diameter (just under 9-1/2”)
O-Ring Outside Diameter: 10.05” Outside Diameter (just over 10”)
O-Ring Thickness: 0.275” Thickness (just over 1/4”)
Pack Quantity: 2-Pack

Get your leaking pool filter back in working order with Captain O-Ring’s replacement 805-0448 / WC9-3 o-rings.

  • Compatible with Waterway ProClean Pool Filters (models PCCF-075, PCCF-100, PCCF-125, PCCF-150, PCCF-175, PCCF-200).
  • Compatible with Pentair Sta-Rite Posi-Flo II pool and spa cartridge filters (models PTM50, PTM70, PTM100, and the PTM135 Series).
  • Replacement for the discontinued 78105 o-ring, compatible with Jacuzzi J-C150 filters.

Approximate O-Ring Dimensions: 9.48” Inside Diameter (just under 9-1/2”), 10.05” Outside Diameter (just over 10”), 0.27” Thickness (just over 1/4”).

Package contains two (2) o-rings. Replace your leaking o-ring and have a spare on hand for the future with this handy 2-pack.

Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!

Important Note about Jacuzzi compatibility: This part is an exact replacement for the Waterway 805-0448 and Pentair/StaRite WC9-3 o-ring. It is slightly smaller in diameter and slightly thicker than the original Jacuzzi 78105 o-ring. However, since the 78105 o-ring is discontinued, this is the part we recommend J-C150 owners to order as it has been tested and confirmed to seal these filters as a way to still offer a replacement to the discontinued part.

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