Duotight - 8mm shut off ball valve. This is an equal ball valve to take 8mm OD tubing in both sides. No clamps necessary, however we do recommend cutting your hosing straight, not on an angle, to ensure the line has a complete seal. To remove the fitting simply push in the collet and the hose can be removed. These push in fittings are suitable to be used up to 100 psi. These push in fittings have been engineered for maximised performance in both gas and liquid applications. Duotight takes the double safety approach to all of the connections with two EPDM o-rings per hose port. Note: colour may vary.