The Pondmaster AP-Series air pumps have been designed to satisfy therequirements of a multitude of water-related applications.All AP-Series airpumps operate on standard 110V electric and come with a 6' powercord.The non-oil lubricated motor is designed to operate efficientlyand save energy.For outdoor applications, it is recommended that the unit be enclosed to protect it from the elements.USES* Oxygenating ponds and aquariums for a cleaneraquatic environment* Promoting healthier fish and aquatic plant life* Increasing the breakdown of fish waste* Preventing icing-over in outdoor ponds* Driving protein skimmersHigh volume pump with steady air flow is energy efficient with quiet operation. Single outlet discharge. Air diffuser included. One year warranty. ModelFor Ponds up to:Max Water DepthAir Flow Inches/MinPowerHose SizeAP-202500 Gallons7 Feet1700201/2"" IDAP-405000 Gallons10 Feet2900405/8"" IDAP-607000 Gallons9.6 Feet5500603/4"" IDAP-10010,00 Gallons11.5Feet91501003/4"" IDSelect:Sup045201700 cu. in. / min. air volume; 20 watts; requires 5/8"" ID tubing8.5 x 5.5 x 6.5Sup045402900 cu.in./ min.air volume;40 watts;requires 5/8"" ID tubing 9.5 x 6.5 x 7.25Sup0456050 watts; .75 amp. Max water depth of 9.6'. Output is5500 cubic inches/min. Pressure + 5.66PSI. Requires 3/4"" I.D. tubing.10 x 8 x 8.5Sup04580100 watts; 1.5 amp. Max water depth of 11.5'. Output is9100 cubic inches/min. Pressure + 6.53PSI. Requires 3/4"" I.D. tubing.11.5 x 8 x 9Replacement Parts:Sup14505 - Manifold for AP - 20Sup14515 - Manifold for AP - 40Sup14525- Diaphragm Kit Ap - 20Sup14545 - Diaphragm Kit Ap- 40Sup14550 - Manifold AP - 60Sup14555 - Diaphragm Kit AP - 60Sup14560 - Manifold AP - 100Sup14565 - Diaphragm Kit AP - 100Click PDF File below for Instruction Manual: SUP14560-Manifold AP-100