This tank ships with a composite cover.

The Schier Billy Goat solids interceptor model SI-75 is a lifetime-guaranteed unit made in the USA of seamless, molded polyethylene with uniform 3/8" wall thickness. Designed for gravity drainage applications only, it supports flexible installation below grade, above grade, indoor, or outdoor. The SI-75 can be enhanced with optional accessories including the AK1 anchor kit to secure the interceptor in high water table or buoyancy-prone installations, the PP3 pumpout port kit which allows remote pump-out capability for easier maintenance access, and the FP24 riser system which provides additional height adjustment for buried installations and finished grade alignment.