The Eco plus 5 and 7 are linear pumps that work well for small ponds in less than 10 ft. of water.
http://www.aquariumspecialty.com/air-pum...cial-air-7-pump

http://forums.pondboss.com/ubbthreads.ph...true#Post245867

Last edited by adirondack pond; 01/05/12 02:48 PM.