#140243 Pentair Triton II TR-140 36" Commercial Pool Sand Filter Pentair Triton II Side Mount Filters Triton II Fiberglass Sand Filter without Valve The original and still the industry standard. Pentair's unique process creates a one-piece fiberglass reinforced tank with UV resistant surface finish for years of unequaled strength and durability. This unique method locks in fiberglass preventing fibers from "blooming" under harsh conditions. Features: Heavy-duty closure provides easy inspection and features an easy-to-read pressure gauge with air relief valve Swing-away diffuser allows instant access to sand and all internal parts All internal parts are threaded for ease of service Internal air bleed Bulkhead connectors are threaded for easy installation Fiberglass 4.91 sq feet filtration 600lbs total sand requirement Choose from the following Backwash Valves: 261049 Pentair 2 in. HiFlow valve no plumbing 261050 Pentair 2 in. HiFlow valve w/plumbing for sand filters 261055 Pentair 2 in. MPV for sand filters (SM 20-3) 263064 Pentair Push Pull 7.5" Center Valve Almond PVD Pentair Valves must be purchased separately. https://www.pentair.com/en-us/products/residential/pool-spa-equipment/pool-filtration/triton_ii_side_mountfilters/sku/140243.html