Abstract: A pair of spaced apart radial shaft seals are held together by an interlocking pair of support members. The support members form an inner cavity which is in flow communication with the annulus between the shaft seals and the shaft. The inner cavity is vented to the atmosphere by means of a partial hole formed in the outer diameter portion of the support members. Any fluid that accumulates between the seals in the annulus is permitted to drain out through the inner cavity and the vent hole. The vent hole also prevents the formation of a vacuum in the annulus during operation. A channel between the support members is in flow communication with the annulus.