Top/Bypass Fitting for 18/20 mm Tube$40.00 Top/Bypass Fitting for 18/20mm Tube Top/Bypass Fitting for 18/20 mm Tube quantity Add to cart SKU: 96012 Category: Spare parts Additional information Additional information Package 1 Related products Add to cart End Fittings For Gc Columns, 6X2 mm (Includes Ferrule) $35.00 Add to cart Connection, 5 mm Poly. Tube To Autosampler Or Electrovalves $10.00 Add to cart Polyethylene (Blue $66.00