Hayward Pro Series high rate sand filter. Design # S310T2. Purchased brand brand-new 2 years earlier but old pump went out so we hardly made use of filter. Paid $800 asking $500. Made use of on a 20x40 in ground swimming pool. Cash only. Get in sulphur. This is a big sand filter. Compare used rates on internet. I am less expensive for this size filter.

　　Fiberglass steps available too $75 negotiable.

　　From business website:.

　　The Hayward S310T2 30 inch Pro Series Pool and Spa Sand Filter is constructed with a leading diffuser which equally disperses water over the sand supplying the very best filtering possible while the self cleaning 360 degree laterals offer an efficient flow of clean water to your swimming pool and even more comprehensive backwashes. The S310T2 consists of an easy to use several position valve which permits effective and easy operation. The filter runs for shorter time periods with it's full-flow innovation ultimately saving you money. Built to last, Pro Series Sand Filters are molded with long lasting, corrosion-proof strengthened thermoplastic.

　　* Top diffuser makes sure even distribution of water of sand.

　　* Vari-Flo numerous position valve included.

　　* Full sized internal plumbing for a free streaming efficiency.

　　* Corrosion proof, all weather condition filter tank made of durable product.

　　* Flange clamp design permits 360 degree rotation of valve.

　　* Under drain assembly.

　　* Precision crafted, self-cleaning slotted laterals.

　　* Molded drain plug provides simple draining of tank.

　　* Rugged deterioration proof base.