View cart “Cooling Fan for CE Instruments” 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 O-Ring, 11 mm $14.00 Add to cart Ss Tubing, 2 mm OD $70.00 Add to cart Connector, 6 MB x poly. (blue) tube $9.00