3/8″” M x 1/4″ M Hose Connector 5,000 PSI Paint Spray Hose Fitting by | Jul 21, 2026This fitting is 3/8″ male on one side and 1/4″ male on the other side. It is used frequently when connecting a 3/8″ hose down to a 1/4″ hose. 1/4″ M x 3/8″ M Hose Connector. Good communication will fix most problems.