The BluBird FastFix Hose Fittings are designed to quickly fix damaged hoses and fittings. Made from heavy duty brass, FastFix fittings are available in 1/4" and 3/8" NPT for repairing the end of the hose, as well as 1/4" and 3/8" NPT splicers and work with all BluBird Air hoses. These fittings are designed for easy on-site installation.