This Air ConditioningDrain Hose Connector Elbow Fitting Well for Air Conditioning 19mm / 0.75in Air Conditioning Drain Hose Connector Elbow with Rubber Rings well-designed for most Air Conditioning The Connector Elbow is equiped with rubber-rings, which can perfectly aviod flowing and leaking Connecting terminal to the Air Conditioning Outdoor Unit, the other terminal to the Drain Hose Well designed, crafted from PVC, excellent process, rigorously tested, weather resistant