GC Tek AlphaONE Plus Filtration System AOPS 4.25 - For Ponds To 10,000 Gallons And Fish Loads To 225 LBS AlphaOne 4.25 filter; The AquaSwirl Internal Vortex is a unique circulation pattern that spins solids to the center of the filter. The Media Agitator is a dynamo powerhouse of air output! During backwash cycle this 1.5 hp blower breaks up the media, allowing sludge to be flushed while beneficial bacteria is retained. The water polishing ability of the filter is one of its most desirable features. There are no hidden spaces for anaerobic bacteria to harbor and stagnate, only beneficial bacteria. Mashimizu Pre-Plumbing Package that includes all plumbing, pipework, unions at all connections with all system components set up on an all weather pad ready to be set up and enjoyed quickly and efficiently Zapp Pure ZP-10 58 Watt UV; High intensity single lamp design; Heavy duty 316 stainless steel; 4" non flow robbing chamber for maximum kill; Horizontal or vertical mounting; Polished inside and out for total reflection; Electronic ballasts; All stainless steel including entire leak tight assembly Pentair Dynamo Pump: Model: DYNII-N2-1HP; HP: 1; Speed: 2SP; Volts: 115; Full Load Amps: 11/2.9 Backwash in as little as 3 minutes per week; Lifetime warranty on AquaBead filter