WeatherTech FloorLiners - Front - Tan - Ford Fullsize SUV/Truck 1999-2007 R1 The relief valve has a

The relief valve has a pressure threaded plug instead of a cup plug

Wood Fiber

56 in Diameter

80 Micron stainless steel filter

All threads are NPT

WeatherTech FloorLiners - Front - Tan - Ford Fullsize SUV/Truck 1999-2007 R1 The relief valve has aFloorLiner In the quest for the most advanced concept in floor protection, the talented designers and engineers at WeatherTech have worked tirelessly to develop the most advanced floor protection available today! The WeatherTech FloorLiner accurately and completely lines the interior carpet giving "absolute interior protection"! The WeatherTech FloorLiner lines the interior carpet up the front, back and even up the sides of the vehicles footwell.