Check the listing for details. Melnor Stop - Quick Connect Hose Fitting - 4MQC. Condition: New. Listed at 2.85 USD. The Melnor 4MQC Hose Quick Connect is an outlet end connector with water-stop, and attaches to male end of any garden hose for easy quick connect attachment of accessories. It stops water flow when product is disconnected saveing time, energy, and water. Melnor Quick Connect Features: Water flow automatically stops. Attaches to male end of any garden 1/2" hose for easy Quick Connect attachment of accessories. Female coupling with water shut-off quick connect. Easy to change while the water is still on. Attaches to male end of garden hose for easy QuickConnect of watering products. Quick coupling for an easy attachment of accessories. Three integrated spring knobs for an easy connection (without pulling the ring) and a stable quick coupling connection. Size: 2.75" x 1.25". We highly recommend getting the kit with the 10ft flexible hose attachment, it is much easier to use with your grinder polisher.