Milton 764 v style female quick disconnect. 1/4″ FNPT high flow V style couplers will accept A, M and V style plugs, however, to retain maximum air flow use V style plugs. Sleeve release is a push type and is easy to use; simply push plug into coupler to engage, pull sleeve back to remove. Perfect for high volume, low pressure applications. V style couplers have a 1/4″ basic flow size and a maximum pressure of 300 PSI.