This push in joiner is suitable for our EVABarrier Beer & Gas hosing in 9.5mm (3/8") OD line. These push in fittings are suitable to be used up to 100 psi and have been engineered for maximised performance in both gas and liquid applications. Compared to other push in fittings on the market, duotight takes the double safety approach to all of the connections with two EPDM o-rings per hose port. No other push ins on the market have EPDM o-rings, let alone two per push in connection.