Koolance FIT-V10X16-BK Compression Fitting for 10mm x 16mm (3/8in x 5/8in) *Black*, G 1/4 BSPP Single fitting for 3/8in (10mm) ID, 5/8in (16mm) OD tubing. G 1/4 BSPP (parallel) thread fitting. Additional Specifications &bullet; Materials: Brass, EPDM &bullet; Max Temperature: 120&deg;C (248&deg;F) &bullet; Max Pressure @ 25&deg;C: 15kgf/cm2 (213.4psi).