| Model |
Size (cu. ft.) |
Max Pond Size |
Flow Rate (gpm) |
Fish Load (lbs.) |
Dimensions |
| AlphaONE 1.75 |
1.75 |
2500 gallons (U.S.) |
50 gpm |
87.5 lbs. |
19" x 31" |
| AlphaONE 2.50 |
2.5 |
5,000 gallons (U.S.) |
70 gpm |
125 lbs. |
21" x 34.5" |
| AlphaONE 4.25 |
4.25 |
10,000 gallons (U.S.) |
90 gpm |
225 lbs. |
24.5" x 35.5" |
| AlphaONE 6.0 |
6.0 |
17,000 gallons (U.S.) |
120 gpm |
300 lbs. |
30.4" x 40" |
| AlphaONE 10.0 |
10.0 |
25,000 gallons (U.S.) |
180 gpm |
500 lbs. |
36.4" x 45" |
GC Tek's AlphaONE filters are designed to be the most energy-efficient filters on the market. The filters feature more than double the lateral surface area of other filters thanks to proprietary Omnifuser technology. This design allows for better water oxygenation and provides a larger surface area for beneficial bacteria to grow.
Additionally, the AlphaONE filters come with the highest flow multiport valve on the market, which reduces energy costs by allowing for a smaller, more efficient pump. This feature alone can save the end-user hundreds of dollars annually in energy costs.
I appreciate that they use real university test data—1 cu. ft. handles 50 lbs of fish fed 1% daily. That gives me confidence I picked the right size filter.
GC Tek doesn’t stretch claims. Even though their beads offer 500–550 sq ft surface area per cu ft, they size filters based on the conservative tested rate of 400–450 sq ft—it makes me trust the system more.
Clever design. Matches filter size to fish load, not guesswork.
