The AlphaONE filter is un-like regular "bead" filters that trap solids in the first few inches of media. Using AlphaBioOne media, the AlphaONE filter traps debris evenly throughout the pack of media which optimise's flow rates while polishing the water. Makes a great bio-mechanical filter!

All of the AlphaONE filters utilize the AquaSwirl internal Vortex spinning design that spins heavier solids to the center of the bottom of the vessel. Included is the media, a blower for backwashing, see through dome lid and the AlphaONE Life Support System permitting an air pump connection for keeping beneficial bacteria alive during any medical bypassing of the filter. Superior double strength body and design. Best Filter on the market! Priced right with free shipping!
GCtek Alpha Bead Filter
GCtek Alpha Bead Filter media The AlphaONE filters use the AlphaBioONE media which is specially designed for this filter and this filter only. It is not something borrowed from another industry and used in the filter. In years of testing it has received "0" negative comments from pond dealers and owners. It performs so well, many upgrade existing AquaBead Filters to the AlphaBioOne Media used in the AlphaONE filters.

GCtek Alpha One Bead Filter for koi ponds AlphaONE 2.5 Filter
The 2.50cu.ft. AlphaONE is the perfect filter for ponds up to 5000 gal. and fish loads up to 125 lbs. Flow rated at 70 gpm for bio-mechanical filtration. 21" X 34.5" allows you to hide this unit anywhere. Every option including the blower is standard equipment. The perfect filter for the majority of ponds.

Price: $1979.95 FREE SHIPPING 
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AlphaONE 4.25 Filter
This is the 4.25 cu.ft. Very popular filter for most Koi ponds. A 4.25 cu. ft. capacity designed to be used on ponds up to10,000 gallons with fish loads up to 225 lbs. Easily flows 90 gpm while only having a footprint of 24" X 35.5". The benefit to a larger filter on smaller ponds is the increased turn over rates resulting in polishing the water of more fines and processing more biological or handling the stocking levels of a 10,000 gallon pond. (Excellent choice for any pond from 2000 to 10,000 gallons when stocking levels are more then they should be.)

Price: $2204.95 FREE SHIPPING
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GCtek Alpha One koi pond Bead Filter

AlphaONE 6.0 Filter
The 6.0cu.ft. AlphaONE boasts 6 cu. ft. of media and a carrying capacity of 300 lbs of fish. Something for the serious Koi keeper. The Koi keeper with a pond up to 17,000 gallons with flows up to 120 gpm. All this in a package only 30" X 40".

Price: $2564.95 FREE SHIPPING
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Very popular filter
GCtek Alphaone 9 koi pond Bead Filter

AlphaONE 9 Filter
This will get the job done. An unbelievable 9.0 cu. ft. of beads in the AquaBead in a size of only 36" X 45". Almost anyone can find a space of 36" to fit one of these monster Koi filters in. Use on ponds up to 25,000 gallons with flow rates up to 180 gpm. This is truly the Ultimate BIG Pond Filter.

Price: $3324.95 FREE SHIPPING
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Free Freight or Free Shipping offers are fast and only within the 48 continental United States. Not valid for HI, AK, etc.

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