Penn-Plax Cascade 700, 1000, 1200 & 1500 Canister Filter Replacement Impeller Retainer O-Ring (CCF-218)

Penn-Plax Cascade 700 Canister Filter, Cascade 1000 Canister Filter, Cascade 1200 Canister Filter and Cascade 1500 Canister Filter replacement Impeller Retainer O-Ring. Penn-Plax part # CCF-218.