1 Bag Fibreglass Sand Filter
Sand filters are used as a step in the water treatment process of water purification.
UltraZap sand filters are made with woven fibreglass and are superior in construction and designed specifically with Koi keeping in mind. The easy access lid is located at the top of the filter for ease of use and for open backwashing.
Pressure testing done on UltraZap sand filters have shown to have passed the standard 4000 cycle test and exceeded 26 750 cycles.