AlphaNANO 1.75 Filter from GCTek Suitable for ponds up to 2500 gallons.
All AlphaNANO filters utilize the Omnifuser design technology that eliminates slotted PVC pipes in the filter. The Omnifusers allow the heavier solids to be easily purged from the bottom of the filter during backwash since they are sitting at the lowest point in the filter.
Every option is standard equipment. It is the perfect filter for the majority of ponds. AlphaNANO filters also feature the the AlphaONE Life Support System, known as "ALISS", which keeps beneficial bacteria alive indefinitely during medical shutdowns, pump failures, etc.
The 2" Clear Union Spring Check Valve located right under the 2 HP blower provides maximum flow and has built-in unions along with a PVC slide valve for extra security in case of spring check valve failure.