SunSun HW303A, HW303B Aquarium Canister Filter O-Ring Seal (2 Pack)

Product Features:

• 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!

Fix your leaking canister filter and have a spare on hand to prevent costly leaks with Captain O-Ring’s 2-pack replacement o-rings for SunSun canister filters.

This o-ring is compatible with SunSun HW303A (HW-303A, 303A) and HW303B (HW-303B, 303B) aquarium canister filters.

Confirm your model matches one of the models above before purchasing to ensure you order the correct size that fits your filter.

These o-rings are an exact match in size, tolerance, and material to the ones that came with your canister filter when it was new. 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!