+3 Flojet Self-Priming Pump AP34 $269.99 In stock Quantity: 1 Add to Bag Product Details Replacement pump for AP36 Water Pressure Pumping System: 40 psi, 4.5 gpm maximum flow 12VDC, 12amps max, Demand switch EPDM valves Santoprene diaphragm 3/4" barb Plug in ports Water transfer pump This Floject pump is designed for use with an expansion tank bladder. A failure to use the bladder will decrease pump life. Use of this pump without an expansion tank will void warranty. Save this product for later Favorite