GC Tek leads the way in pond filtration with its advanced 3" technology, designed to move large volumes of water efficiently and economically. The complete 3" system lineup includes AquaSieve SS3.3 prefilters, Artesian Pro 3" pumps, AquaBead 10.3 and AlphaONE 10.3 filters, and Zapp Pure UV lights, all engineered to filter ponds up to 30,000 gallons using 10 cubic feet of popular AlphaNANO media.

Featuring a large multiport valve with true 3" ports, the AlphaNANO filter ensures smooth flow and easy maintenance. It’s also available as part of the AlphaNANO 10.3 PLUS System—a ready-to-use package with pump, filter, UV unit, and optional stainless steel prefilter, all mounted on durable weather-resistant pads.

Users appreciate its ability to maintain high flow rates for extended periods. While some have gone up to a month without backwashing, regular cleaning is recommended to ensure optimal water quality and fish health.