The IMPCO VFF30 is a combination fuel lockoff and filter engineered for use with LPG (liquid or vapour) or natural gas vapour. A negative pressure of 1.69 kPa (0.5" Hg) is required to open the lockoff. The VFF30 is suitable for engines up to 242 kW (325 hp) at a maximum working pressure of 2,150 kPa (312 psi). The filter element is fully serviceable.