The connection hole size is 25mm, suitable for most air conditioners. Simple DIY installation is available if this drain hose connector does not match your condensate outlet. This is a simple and effective part for draining condensate, featuring a rubber ring to help prevent leaks. Effectively helps prevent condensate leakage and reduces the risk of water damage in your home. Universal elbow air conditioning drainage hose connector with wide compatibility. Well-made design with a practical structure for reliable performance. Practical connector for drain hoses, designed to efficiently manage water drainage. This drain hose adapter is compatible with mini split units and window AC units. Features: - Color: White - Material: Plastic - Well-crafted construction with a functional design for everyday use - Convenient drain hose connector to help manage leakage - Compatible with mini split and window air conditioning units - Universal elbow design fits a variety of applications - Helps prevent leaks and potential water damage Package Includes: 3 x AC unit drain hose adapters