Large ponds and aquariums need a powerful pump. O.S.I.'s Submersible Pond Pumps are a reliable choice for a fountain, waterfall or filter. These durable, efficient pumps are constructed of non-corrosive materials with ceramic shafts for long life. The body is epoxy sealed to protect electrical components making each unit completely submersible. The GP-4000 Water Pump is strong enough to handle applications of up to 2,000 gallons with a reliable flow of 1,083 gallons per hour. This versatile pump can be used as a submersible pump or plumbed inline with your system. This pump can accommodate 3/4 - 1 in. diameter tubing. Size: Pump is 4.25 in. x 8 in. x 6 in.
It has a pretty serious output of water even at 5ft. It definitely holds it's own.
The Inlet is 1" and out is 3/4" that's odd. (why the 4 stars) Comes w/ fittings You can use. You can use 1" for both but not 3/4" unless you reduce. It works WELL for what I need it for.