View cart “Top/Bypass Fitting for 18/20 mm Tube” has been added to your cart. Rubber Inserts for the Air Line and He & O2 Vent Caps$11.00 Rubber Inserts for the Air Line and He & O2 Vent Caps Rubber Inserts for the Air Line and He & O2 Vent Caps quantity Add to cart SKU: 80034 Category: Spare parts Additional information Additional information Package 2 Related products Add to cart Cap for air lines $25.00 Add to cart Blanking Nut, Brass $16.00 Add to cart Top/Bypass Fitting for 18/20 mm Tube $40.00