Model number: F601C-AC Material: Brass double-lock extensible hose one end is brass conical nut the other one is brass hexagonal nut with two brass nipples. Specification:F1/2"XF1/2" Φ14mmx1.5m Construction: interlock Surface treatment: electrolysis,polishing,plating (chrome.gold,red bronze) Length: 1.2m,1.5m,2.0m.according to customer's requirement.