The 7.5-gal tank is the latest addition to join the STS series product line. Stenner has combined its peristaltic metering pump with the 7.5-gal tank to create the system in a size requested by customers. The tank system is shipped preassembled for quick installation and is available with an adjustable or fixed output single head pump. The metering pump with a rain roof is vertically mounted over the containment basin.