Cascade 1200 & 1500 Motor Gasket UnitThe Cascade 1200 and 1500 Motor Unit Gasket replaces old, worn out or cracked motor gaskets in the Cascade 1200 (CCF4UL) and 1500 (CCF5UL) aquarium canister filters. Cascade canister filter motor unit gasket replacement Fits Cascade 1200 (CCF4UL) and 1500 (CCF5UL) canister filters Prevents costly damage to filter motor As gaskets get older, pressure and wear and tear cause them to lose their snugness. Replace misshapen gaskets to maintain a water