Specifications: Length: 220mm Width: 105mm Height: 45mm Weight: 78g Application: For 19 mm (3/4") hose - Frost protection: Yes Warranty: 5 years warranty The GARDENA Quick Coupling with Control Valve allows you to easily change connected devices , especially at high water pressure. Easy to adjust and close the water flow at the end of the hose. Fits 19 mm (3/4") and 16 mm (5/8") hoses. **