STAINLESS STEEL CONSTRUCTION
The new Fumoto DEF valve is constructed of high quality stainless steel which allows it to last a lifetime in the presence of DEF which will easily corrode other metals. The internal teflon seals and Viton O-ring are DEF safe as well.
FREEZE WARNING INDICATOR
Diesel Exhaust Fluid is two thirds water, and can freeze easily. Opening a valve on a frozen DEF tank can cause serious damage. The Fumoto DEF valve features a red indicator that becomes exposed when the valve is frozen to warn the user not to operate it. This also provides room for the fluid to expand, thereby helping prevent damage to the valve or tank.