View cart “Rubber Inserts for the Air Line and He & O2 Vent Caps” has been added to your cart. Cap for air lines$25.00 Cap for air lines Cap for air lines quantity Add to cart SKU: 80022 Category: Spare parts Additional information Additional information Package 2 Related products Add to cart Blanking Nut, Brass $16.00 Add to cart T-Connector, 5 mm Poly. (Blue) Tube $15.00 Add to cart O-ring for bottom of tubes $7.00