Aquajet Variable Speed Rv Water Pumps Patented 5-valve Design Delivers Up To Twice The Fresh Water Flow Of Traditional Rv Water Pumpsconsiderably More Quiet Than Competitive Pumps With Similar Performance Levels.exclusive Soft Start Feature Eliminates Rapid Cycling Noise.runs Dry With No Damagedigitally Controlled Pump Automatically Adjusts Motor Speed To Maintain Pressure When Several Water Fixtures Are Used. Eliminates Irritating Pressure Drops And The Need For Bulky Accumulator Tanks. Available In Two Models.each Includes Two Straight Quick Connect X Threaded 1/2" Male Qest Fittings (also Sold Separately, Zx346618) And Operate At 80 Psi, 12vdc.arv Variable Speed Pump. Designed To Replace An Existing Oem Installed Pump. 5.3 Gpm, 10 Amps.aes Variable Speed Pump. Efficiency Series Pump Is Designed To Replace Standard Pumps In Most Lower End Rvs As An Upgrade To The New Variable Speed Technology. 3.5 Gpm, 6.5 Amps.