MONO-BALL WITH 2 VALVES Back Catalog number: 3911 Availability: In the manufacturer's stock Price on request - + Recommended 3840 CONICAL STOPPER 2 HOSES - 18x13mm, h 22mm Price on request 3910 MONO-BALL WITH VALVE AND TUBING Price on request 1728 BECHER TPX SERIGR,, 5000ml Price on request