AlphaONE 10.3 Mega Filters

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Model Size (cu. ft.) Max Pond Size Flow Rate (gpm) Fish Load (lbs.)                 
AlphaONE 10.3 10.0 30,000 gallons (U.S.) up to 180 gpm 500 lbs. 36.4" x 45"

The AlphaONE was first conceived over 18 years ago. About 17 years ago we enlisted about 60 willing participants, which consisted of dealers and pond owners, to help us with our testing and give us feed back. In two years of testing we received "0" negative comments. This surpassed even our greatest expectations. Some of these were new pond owners and many were previous owners of different types of bead filters.

GC Tek has been leading the industry in 3" technology. With the need to move vast amounts of water as inexpensively as possible 3" piping makes sound dollar sense. GC Tek now has complete 3" systems including Prefilters (AquaSieve SS3.3), Pumps (Artesian Pro 3"), Filters (AquaBead 10.3 and AlphaONE 10.3) and UV lights (Zapp Pure ZP40.3, 80.3 and MegaZapp). This is an industry First that we are proud of. The use of 3" piping and filtration equipment greatly helps you filter large amounts of water easily without the use of energy hawg pumps saving you lots of Green at the electric meter. Filter ponds up to 30,000 gallons through 9 cu. ft. of the industry's most popular media, the AlphaBioONE media.

The Multiport valve on this filter is huge and boasting true 3" ports at every opening. You can also have this filter on our new complete AlphaONE 10.3 PLUS System which includes the AlphaONE 10.3 Mega filter, ArtesianPro 3" pump and our Zapp Pure ZP40.3 stainless steel High Intensity UV all preplumbed together on all weather pads. Stainless steel AquaSieve SS3.3 prefilter is available as an option.

The responses were unanimous "We Love It"

  • What makes it different from a bead filter and so loveable?
  • What we are hearing from others is that: It can go for greatly extended times before flow slows down.

We have had reports of people going for a month (with only a 2.5 model) with no slow down in flow or rise in pressure of the AlphaONE unit, while still giving nice clear water. (we do not advocate going for a month before backwashing, the best thing for your fish and your water quality is to backwash the filter often and remove the debris before it breaks down biologically.

Reviews (2)

  • Overall rating:
Jason R.
August 1, 2025

Solid filter. Easy to use and keeps the pond clear.

Mike D.
March 14, 2024

Setup was simple, and the water stays clean without me having to backwash too often. The flow is strong and steady—works great for my koi pond.

Model Size (cu. ft.) Max Pond Size Flow Rate (gpm) Fish Load (lbs.)                 
AlphaONE 10.3 10.0 30,000 gallons (U.S.) up to 180 gpm 500 lbs. 36.4" x 45"

The AlphaONE was first conceived over 18 years ago. About 17 years ago we enlisted about 60 willing participants, which consisted of dealers and pond owners, to help us with our testing and give us feed back. In two years of testing we received "0" negative comments. This surpassed even our greatest expectations. Some of these were new pond owners and many were previous owners of different types of bead filters.

GC Tek has been leading the industry in 3" technology. With the need to move vast amounts of water as inexpensively as possible 3" piping makes sound dollar sense. GC Tek now has complete 3" systems including Prefilters (AquaSieve SS3.3), Pumps (Artesian Pro 3"), Filters (AquaBead 10.3 and AlphaONE 10.3) and UV lights (Zapp Pure ZP40.3, 80.3 and MegaZapp). This is an industry First that we are proud of. The use of 3" piping and filtration equipment greatly helps you filter large amounts of water easily without the use of energy hawg pumps saving you lots of Green at the electric meter. Filter ponds up to 30,000 gallons through 9 cu. ft. of the industry's most popular media, the AlphaBioONE media.

The Multiport valve on this filter is huge and boasting true 3" ports at every opening. You can also have this filter on our new complete AlphaONE 10.3 PLUS System which includes the AlphaONE 10.3 Mega filter, ArtesianPro 3" pump and our Zapp Pure ZP40.3 stainless steel High Intensity UV all preplumbed together on all weather pads. Stainless steel AquaSieve SS3.3 prefilter is available as an option.

The responses were unanimous "We Love It"

  • What makes it different from a bead filter and so loveable?
  • What we are hearing from others is that: It can go for greatly extended times before flow slows down.

We have had reports of people going for a month (with only a 2.5 model) with no slow down in flow or rise in pressure of the AlphaONE unit, while still giving nice clear water. (we do not advocate going for a month before backwashing, the best thing for your fish and your water quality is to backwash the filter often and remove the debris before it breaks down biologically.

Reviews (2)

  • Overall rating:
Jason R.
August 1, 2025

Solid filter. Easy to use and keeps the pond clear.

Mike D.
March 14, 2024

Setup was simple, and the water stays clean without me having to backwash too often. The flow is strong and steady—works great for my koi pond.

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