Continuous Siphon Overflow 1-1/2" Single Bulkhead, 1600 gph (mfg

Black top reduces algae growthhFish screenMore efficient and quietThese pre-filters are the best way to move water from an aquarium to a filtration system without expensive modifications. They quietly skim up to six times more water than units with tubes. Can be hard plumbed with standard PVC pipe. (Does not include lid.) Use of Aqua Lifter Pump is necessary to prevent trapped air from the siphon. Combine with Aqua Lifter Filter, a suction-style floss debris filter, to maximize efficiency and use of the Aqua Lifter Pump.Downloadable Continuous Siphon Overflow Selection Guide and CS50 Instructions PDF, CS90 Instructions PDF, CS100 Instructions PDF, CS102 Instructions PDF, CS202 Instructions PDF, and CS150 Instructions PDF. (All require Adobe Acrobat Reader 4.0 or later - get it here for free)Please click on "More Information" for instructions and size information.