Shurflo Aqua King Stnd 12V 2.8Gpm PmpThese self priming diaphragm pumps offer quiet, smooth performance and outstanding durability and reliability. Designed and built specifically for the harsh marine environment, they are dry self priming up to 6' and can run dry without damage. 2. 0 GPM pump handles 1 2 fixtures, larger pumps can handle multi fixture installations. Equipped with a sealed switch and E coated seamless motor shell with O ring sealed end caps. 1 2" NPSM male fittings