Abstract: A valve stem is sized to mate with a filter housing bore. The valve stem has a first and second end and a body. The first end includes a threaded stem portion configured to mate with a corresponding threaded filter portion. The second end has a drain outlet and includes a fitting for a tube. The body has an axial passage disposed therethrough. The axial passage has a divider disposed axially along at least a portion thereof. The divider separates the axial passage into an outlet passage and a vent passage. The outlet passage is open at the first end, at the drain outlet and at a first side passage. The vent passage is closed at the first end, open at a second side passage, open at the drain outlet, and open at a vent side passage.

Abstract: A liquid and air separator includes a housing having a sloped floor and a domed roof, an adaptor, a spacer, a deflector having a plurality of perforations thereon, and a plurality of breathers, each of the plurality of breathers having a stepped portion.