The GCTek AlphaONE LH filters utilize a design to increase flow rates
while not using any more electricity than normal. The biggest flow robber of filters is the multiport
valve, this filter only uses the multiport valve when backwashing and bypass it
while in normal filtration mode. This provides greater turn over of the
pond while not using more energy. It 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 2 HP blower provides maximum flow and has built-in unions.