Durable 24 inch bolted polypropylene cover designed for use with Great Basin® grease interceptors (GB-50+) and Sewer Viewer® inspection ports (SV24 & SV24-O). Made from injection molded polypropylene, it features a gas/water-tight seal, stainless steel center bolt, and is rated for pedestrian loads up to 2,000 lbs (CSA B481.0 Class M). Ideal for above-grade or buried indoor/outdoor installations. Cover sold separately; tanks ship with temporary cover.