Penn-Plax Cascade 700, 1000, 1200 & 1500 Canister Filter Replacement Suction Cups w/Clips For the Cascade 700, 1000, 1200 & 1500 Canister Filters Penn-Plax Cascade Canister Filter Replacement Suction Cups w/Clips Penn-Plax part # CCF207 8 suction cups Will NOT fit the Cascade 500