Semi-hydraulic two and three diaphragm pumps for use in gardening, agricultural, lawn and turf sectors. *These fit standard engines with 3/4" keyed shaft. Includes gear box and pressure regulator. AR45 Polypropylene Pump Liquid Fertilizer Pesticide (LFP) 11.4 GPM 290 PSI 2.1 HP 35mm suction 1" outlet 140 degree F max Replacement AR43238 Viton Seal Kit Available Replacement AR42816 Check Valve Kit AR252 Pump 6.5 GPM 362 PSI 1.42 HP 3/4" suction 1/2" bypass 140 degree F max compare to Hypro D252 Replacement AR43279 Desmopan Seal Kit Replacement AR43281 Blue Flex Seal Kit Replacement AR2408 Check Valve Kit AR30 Pump 9.6 GPM 580 PSI 2.9 HP 1" suction 1/2" outlet 140-degree F max * AR30-GR3/4-GCI Replacement AR4385 Blue Flex Seal Kit Replacement AR43283 Desmpan Seal Kit Replacement AR1917 Check Valve Kit