The Inland Seas Super Lube Silicone Lube, 1cc, is enough lubricant to lubricate the Inland Seas Nu-Clear Canister Filter Replacement O-ring four times. For most other canister filters you can also lubricate the main body o-ring four times. When used with smaller o-rings for pumps, UV sterilizers and filter inlets/outlets there is enough lube for several uses.