View cart “Rubber Inserts for the Air Line and He & O2 Vent Caps” has been added to your cart. O-ring for bottom of tubes$7.00 O-ring for bottom of tubes O-ring for bottom of tubes quantity Add to cart SKU: 61103 Category: Spare parts Additional information Additional information Package 10 Related products Add to cart Top/Bypass Fitting for 18/20 mm Tube $40.00 Add to cart O-Ring, 11 mm $14.00 Add to cart Connection, 5 mm Poly. Tube To Autosampler Or Electrovalves $10.00