MATERIAL & DURABILITY: This O-Ring is made of high quality rubber with excellent durability to resist abrasion and corrosion, not easy to age or oxidise.

Compatibility and Sealing: The dimensions are designed to be fully compatible with the Fish Tank Canister Filter, ensuring no leaks or oil spills during use.

Applicable equipment: A20212 O-Ring is designed for Fluval FX4, FX5, FX6 high-performance filters, with mounting locations at the valve and hose connections on the filter cover.

Compatibility: Suitable for FX4, FX5, FX6 performance dust cup filters.

SEALING PERFORMANCE: As a replacement seal for performance dust cup filters with leak-proof function.

Replacement Part: This O-ring is a replacement for A20212 / A-20212. Please check the required model number before purchasing.

Location: The A20212 O-ring (also known as a sealing ring or gasket) is located at the two snap fittings where the valve and hose connect to either side of the filter cover.

Tool Requirements: No special tools are required for installation. Simply remove the dust cup filter, remove the old gasket and replace with a new one.

INSTALLATION NOTE: When installing, clean the oil fill port and tighten the dust cup filter cover to ensure that the dust cup filter cover works properly and no longer leaks.