Manually control the flow of vital O2 or turn fuel pumps on or off Made of chrome-plated copper, air never escapes. Not suitable for CO2 systems Inlet diameter: 8 mm, outlet diameter: 4mm. Total size: 44mm Check valve protects your air pump, suction cup fits air valve diverter and standard tubing, 3-way and straight T-Way connector repairs or extends the air hose. Scope of delivery: 1 shunt head 8 turns 4 mm with two holes, silver
