McAlpine MACVALVE-4 2" Self Closing Waste Valve - Compression x Compression

2" x 2" Universal Compression Connections - Designed for a secure, tool-free fit between same-size pipes; ideal for residential or commercial plumbing installations. Self-Sealing Valve Mechanism - Internal membrane opens under water pressure to allow flow, then automatically seals shut to block odours, gases, and backflow. Backflow & Odour Protection - Prevents foul smells, harmful sewer gases, and waste water from re-entering your system - ideal for appliances, basements, or vulnerable plumbing points. Horizontal or Vertical Installation - Versatile design allows easy fitting in either orientation, offering flexibility in tight or awkward spaces. Durable & Maintenance-Friendly - Constructed from high-quality materials resistant to corrosion. The valve can be easily removed for cleaning or maintenance when needed. Quick Shut-Off & Leak Prevention - Acts as a reliable non-return valve, sealing immediately if disconnection or malfunction occurs to reduce risk of water damage., Manufacturer: McAlpine