EZ Bio Double + Socket 7.9" x 7.9" up to 3400 gph.  

• Improves pump efficiency. 
• Highly efficient filtration. 
• Easy to install and clean. 

1-1/2” BSPF threaded female connection with universal hose tail adapter that accepts 1”, 1-1/4”, and 1-1/2” ID hose. 

Simple and effective biomechanical pre-filters improve pump performance. Prevents pump damage and flow reduction due to debris and clogs. Expandable units available in single or double Matala® filter media core for superior biological filtration. Universal barbed fittings accept 1" to 1-1/2" tubing or 1-1/2" MPT. The versatile EZ Bio Filter can be used as a biomechanical pre-filter for circulation pumps, filtration pumps, and water fountain pumps.

The EZ Bio 20 has 2 filter core elements; an internal Black core combined with a larger Green outer core element. The outer Green core element is 8 inch diameter and 7.5" long.
The Inner core is 4" diameter.

The core element slides over a rigid slotted pipe. This rigid slotted pipe has a 1.5" male thread on one end and a 1.5" female thread on the other end. It is possible to connect multiple slotted pipes together to extend the length of the EZ Bio.