Supreme Hydroponics™ Oxy-Flo Low Volume Air Pumps

Supreme Hydroponics™ Low Volume Air Pumps aerate water to facilitate nutrient absorption and to stimulate root growth. These easy-to-use pumps feature energy-efficent, quiet, oil-free motors and accept standard 3/16" airline tubing. Oil-free motor is efficient and won't pollute the pond! Adjustable flow suitable for various applications Standard 115V electric with 6' power cord Aerates nutrients to stimulate root growth 1 year warranty SKU UPC Code Model Air Flow Max Depth Outlets Watts Pressure 40512 025033405127 AP-2 73 cu.in./min 3' 1 1.5 1.45psi 40513 025033405134 AP-3 110 cu.in./min 3.3' 1 2.8 1.45psi 40514 025033405141 AP-4 275 cu.in./min 4' 2 3.5 2.0psi 40518 025033405189 AP-8 549 cu.in./min 4.5' 4 7 2.0psi