Complete aeration system for ponds up to one acre depending on shape and depth of pond. 1/4 hp compressor, 2.3 cfm, 1.7 amps, aerates up to 50′ deep. The PA34 kit also includes QS1 Quick Sink air diffuser, outlet assembly with pressure relief valve, 100′ of 3/8″ poly tubing and fittings for connections. This system will effectively aerate: 1/4 Acre Pond at 5'-8' Deep 1/2 Acre Pond at 8'-12' Deep 1 Acre Pond at 12'-16' Deep PA34 (No Cabinet) features: 1/4 hp Stratus SRC25 Gen 2 compressor with two year warranty Outlet assembly with pressure relief, heat reducing hose and 3/8″ connections QS1 Quick Sink Self Weighted single head air diffuser 100′ of 3/8″ poly weighted tubing Approximately 2.3 cfm of air flow per diffuser Typical operation cost of $0.40 per 24 hours at .09¢ per kWh, actual cost may vary PA34 requires weather protection for the compressor (Available for purchase with cabinet, or without. If you choose the system without cabinet, you will need to provide your own protective housing to shield the compressor from the weather.) 2-Year Warranty on Compressor, 5-Year Warranty on Tubing and Diffuser PA34D Sentinel Deluxe System (Ground Cabinet) features: SRC25SS Stratus™ SRC 1/4 hp Air Compressor with Sound Shield™ pre-installed SC22 Deluxe 22″ Ground Mount Locking Cabinet Cabinet hardware Noise reducing foam pre-installed Valved outlet assembly pre-installed Pressure gauge pre-installed Pressure relief valve pre-installed Cooling fan pre-installed Electrical box/outlet pre-installed and ready for your incoming power line Heat reducing hose and 3/8″ connections QS1 QuickSink Weighted Diffuser (single head) 100′ of 3/8″ QuickSink weighted tubing with fittings for connections Typical operation cost of $0.40 per 24 hours at .09¢ per kWh, actual cost may vary. 2-Year Warranty on Compressor, 5-Year Warranty on Tubing, Diffusers and Cabinet. PA34DP Sentinel Deluxe System (Post Mount OR Ground Mount Cabinet) features: SRC25SS Stratus™ SRC 1/4 hp Air Compressor with Sound Shield™ pre-installed SC18 Deluxe 18″ Locking Cabinet that can be post or ground mounted – with noise reducing foam pre-installed Cabinet hardware for either post mounted OR ground mounted cabinet placement! Valved outlet assembly pre-installed Pressure gauge pre-installed Pressure relief valve pre-installed Cooling fan pre-installed Electrical box/outlet pre-installed and ready for your incoming power line Heat reducing hose and 3/8″ connections QS1 QuickSink Weighted Diffuser (single head) 100′ of 3/8″ QuickSink weighted tubing with fittings for connections Typical operation cost of $0.40 per 24 hours at .09¢ per kWh, actual cost may vary. 2-Year Warranty on Compressor, 5-Year Warranty on Tubing, Diffusers and Cabinet.