The Buyers Products Side Mount Steel Reservoir features rugged, HRPO steel construction with a welded-on bracket for easy installation to your truck frame. It’s available in 7, 15, 25 and 30 gal capacities to suit a variety of smaller dump, landscaping, and spreader applications. The durable reservoirs are powder-coated black for enhanced corrosion resistance and are internally baffled to reduce sloshing and keep oil temperatures down. The reservoirs features a 2 in. NPT suction/return port and 1-1/4 in. NPT return port. Each tank includes a quarter-turn chrome filler/breather unit complete with basket strainer and magnetic drain plug to help keep your oil pure and free of contaminants. A fluid level gauge is also included. (not included on SMR7S)