Fimco 3.8 gpm Sprayer Shut-Off Valve

The High Flo Check Valve for 3.8 and 4.5 GPM Pumps is the essential internal component that manages the massive fluid movement these pumps are famous for. Over time, high-volume use and aggressive agricultural chemicals can wear down internal seals, leading to a loss of prime or a drop in spray pressure. This replacement kit is the "surgical fix" that brings your pump back to factory-spec performance. - High-volume pumps move a lot of liquid, but they can't move anything if they can't create a vacuum. If your pump is humming but the tank level isn't dropping, a worn check valve is the likely culprit. This kit restores that "snap" that pulls fluid instantly from the tank. A failing check valve allows fluid to bypass the internal chambers, causing your pressure to fluctuate at the boom or broadcast nozzle. Replacing the valve ensures that every bit of the pump's 60 PSI is directed exactly where you need it. Replacing the check valve is a 10-minute job that restores professional-grade performance for a fraction of the cost of buying an all new pump. This isn't a "close enough" fit. This valve is precision-molded specifically for the larger internal housing of the 3.8 and 4.5 GPM High Flo series, ensuring a perfect seal and zero internal leakage.