Free shipping over £99| Material | Synthetic Rubber |
| Nominal Inside Diameter | 8.7 Inches |
| Item Diameter | 8.7 Inches |
| Brand | Captain O-Ring |
| Color | Black (Rubber) |
Captain O-Ring – Replacement Seal Oring for SunSun HW303A, HW303B Canister Filter (2 Pack)
£3.95
About this item
- Replacement Lid/Cover/Head Seal O-Ring for SunSun HW303A (HW-303A) and HW303B (HW-303B) canister filters.
- Approximate O-Ring Dimensions: 8.70” Inside Diameter (just under 8-3/4”), 9.12” Outside Diameter (about 9-1/8”), 0.215” Thick (between 3/16” and 1/4”).
- Package includes two (2) o-rings (also called gaskets, seal rings, or rubber rings). Replace your old, worn, 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!
Free Shipping on Orders Over a Certain Amount
- 30 days easy returns
- Order yours before 2.30pm for same day dispatch
2 reviews for Captain O-Ring – Replacement Seal Oring for SunSun HW303A, HW303B Canister Filter (2 Pack)
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Captain O-Ring – Replacement S...
£3.95
Kane Wiegand –
Better than Original. As soon as opened the package I knew it was a little thicker than the one in the filter. I feel much better after the original leaked following a power failure.
Frederick Farrell –
Had a broken seal on my filter and this was a perfect fit. No issues, no leaks.