AlphaONE - AquaBead - AlphaNANO Filters

AlphaONE - AquaBead - AlphaNANO Filters

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. AlphaONE filters also feature the AlphaONE Life Support System, known as "ALISS", which keeps beneficial bacteria alive indefinitely during times of medical shutdowns, pumps failures, etc. The 2" Clear Union Spring Check Valve located right under the blower provides maximum flow and has built-in unions. If you should ever have to replace the spring check valve, it is no big deal. Just unscrew the top and bottom of the valve, remove the valve body, replace with a new body and re-hand tighten the two unions. Total repair time is under 2 minutes!

The AlphaONE Bead Agitator is a dynamo powerhouse of air output. What does it do? During normal running of the filter the beneficial bacteria causes the beads to be sticky (that's good). In the normal running of the filter algae and other solids combine with the sticky beads to try and form a "glue" that glues the beads together. At the same time the algae and other solids combine and grow larger as time goes by. To properly get them out of the filter when it is backwashed, we need to break this bead "pac" apart and pulverize the solids to a small size again so we can backwash them out of the filter. That's the job of the AlphaONE Bead Agitator. When you kick this 1 horsepower powerhouse into action, humongous amounts of air are injected at the bottom of the filter where the air then rises and as it does "breaks apart the bead pac", thus allowing for a good back wash to be engaged at this point. What goes on inside is a violent rushing of air into the vessel breaking apart the bead pack, but not so hard as to disrupt the beneficial bacteria growing on the beads.

The AlphaONE filters were designed to be the most energy efficient filters on the market. Inside is more than double the lateral surface area, where the upper beads gather around the slots in the lateral arms, than that used on any other filter. Couple this with the highest flow multiport valve on the market and you have a filter that was designed to be energy efficient. By implementing these design characteristics the filter can save the end user hundreds of dollars a year in energy costs. A smaller more energy efficient pump can be used to handle ponds that would normally have to have larger energy "hog" pumps to turn the pond over at the suggested rates. Why do we care, we're not paying the electric bill? We are committed to doing our part to conserve our natural resources. In our operation we recycle everything we can to hold down costs and do our part for the environment.

AlphaONE filters also come with a special wrench that fits over the top cap and allows you to unscrew the cap and gain access. Did you notice I did not say to "unhook your plumbing"? With some bead filters who use top mount valves it is necessary to unhook the plumbing to get inside. Not fun. GCTek, makers of the AlphaONE Filters, knew you wouldn't like this, so they didn't use a top mount design. Unlike lesser quality filters made of plastic, AlphaONE filters is made of fiberglass. This costs a bit more than plastic, but it is also of better quality. GCTek only wanted to use the best and the fiberglass is rated at 50 psi. AlphaONE Filters are also sensibly priced when compared to similar filters on the market.


Size (cu. ft.)

Max Pond Size

Flow Rate (gpm)

Fish Load (lbs.)


AlphaONE `1.75


2.500 gallons (U.S.)

50 gpm

90 lbs.

19" x 31"

AlphaONE 2.50


5,000 gallons (U.S.)

70 gpm

125 lbs.

21" x 32"

AlphaONE 4.25


10,000 gallons (U.S.)

90 gpm

225 lbs.

24.75" x 34"

AlphaONE 6.0


17,000 gallons (U.S.)

120 gpm

300 lbs.

30.5" x 36.75"

AlphaONE 9.0


25,000 gallons (U.S.)

180 gpm

450 lbs.

36 7/8" x 42"

AlphaONE 1.75 Filter
$ 2008.95
AlphaNANO 1.75
$ 2089.95
AlphaNANO 2.50
$ 2374.95
AlphaONE 2.5 Filter
$ 2374.95
AlphaONE 4.25 Filter
$ 2659.95
AlphaNANO 4.25
$ 2659.95
AlphaONE 6.0 Filter
$ 3089.95
AlphaNANO 6.0
$ 3089.95
AlphaNANO 10.0
$ 3984.95
AlphaONE 10.0 Filter
$ 3984.95

More AlphaONE - AquaBead - Alpha NANO Filters ↓

AlphaONE LH Bead Filters

AlphaONE LH Bead Filters

GCTEK deliver the same world-class performance as standard AlphaONE Filters with less head. This allows you to achieve the same stellar results while using a much smaller pump, resulting in a significant energy savings! All of the AlphaONE filters utilize the AquaSwirl internal Vortex spinning des ...
AlphaONE MegaSystem 3

AlphaONE MegaSystem 3

AlphaONE MegaSystem 3 AlphaONE MegaSystem 3 is the latest innovation from GCTek, the recognized leaders in Koi pond filtration. These world-class pond filtration systems provide complete biological and mechanical filtration for Koi ponds up to 25,000 gallons! Everything on the MegaSystem 3 is 3" -- not 2" like most ...
AquaBead Filters

AquaBead Filters

This is the filter that revolutionized the bead filter world. Meet the AquaBead Filter. The Industry standard for Bead Filter. All of the AquaBead filters utilize the AquaSwirl Internal Vortex spinning design that spins heavier solids to the center of the bottom of the vessel. Why do we want to spin the solids to the center of the ...
AquaBead To AlphaONE Media Retro Kits

AquaBead To AlphaONE Media Retro Kits

If you own an AquaBead Filter and would like to upgrade it to an AlphaONE Filter, these AlphaONE Retro Kits are the perfect solution! These kits include replacement bottom spray bar with bigger openings and replacement AlphaONEBio media.


Presenting AquaSieve2 by GCTek! Constructed of high quality implosion resistant plastic, this jewel allows you to stop being a slave to that strainer basket on the front of your pump. No more will you have to do daily bows before that tiny strainer basket on your pump as if it were your master. Most people report that this ma ...
BioTek Filters

BioTek Filters

BioTek Filters are one of the best values in the pond industry today! These quality pond filter systems utilize a totally unique backwashing jetting system known as "FLUFF-N-SPIN" system. Not only does the internal design of the filter allow for a "FLUFFING" of the media during backwash, but it also spins the bed and each ...
Mashimizu Systems

Mashimizu Systems

Mashimizu Filter Systems are the latest innovation from GCTek, the recognized leaders in Koi pond filtration! Each Mashimizu System includes an AlphaONE or AquaBead Filter, Zapp Pure UV Sterilizer, WunderFlo Pump, and Vortek SS Solids Separator pre-filter. Mashimizu in Japanese means “Pure Water” and that is exactly what this syst ...
Replacement Media Agitator

Replacement Media Agitator

Replacement Media Agitator by GCTek.
UniClear Filters

UniClear Filters

Many times water is clear, yet the whites of the fish look yellow. The UniClear filter absorbs the color from the water with high grade carbon and at the same time gives a final polish of fines to the water. This results in the clearest water attainable. Use 2 - 3 way valves during installatio ...
Vorek SS

Vorek SS

The Vortek SS Delux revolutionizes the pond industry by allowing you to add a prefilter that truly separates all debris prior to the pump. Water flows to the Vortek SS Delux prior to the pump where the debris ...

We accept major credit cards