90 cubic inch optional strainer basket, 2" inlet/outlet Check Valves and Assemblies or with the float on

or with the float on you can remove surface vegetation

Large Boulders measure 56" long x 42" wide x 30" high and include one 4" vent

Reduces problem causing nitrate and phosphates

4ea Self Weighted Double Membrane Diffuser Assemblies (#QS2)

filtration capacity and other factors affect the actual max

90 cubic inch optional strainer basket, 2" inlet/outlet Check Valves and Assemblies or with the float onThese optional Strainer Baskets can be used as a prefilter inline before external pumps. They can be used with any brand pump and they have a clear lid for easy inspection. Item # Size Inlet Outlet EXS901 90 cu. in. 1 1 2" EXS902 90 cu. in. 2"