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The Matala Pond EZ Bio 20 Pre-Filter - Double Core is a pre-filter that prevents flow reduction due to clogging. This helps
extend the pump's life by reducing pump stress and damage. It also offers additional
mechanical and biological filtration preventing pump
damage and flow reduction due to debris and clogs. Universal barbed fittings accepts 1" to 1-1/2"
tubing or 1-1/2" MPT. The
EZ Bio 20 has two cores a gray inner core and a green outer core. The inner gray core element
is 4" diameter by 7 1/2" long, and the outer green core has a 8" diameter and 7 1/2" long. The Max Flow Rate for the EZ Bio 20 Single Core 1980 GPH.