devised for solar water heating systems, this automatic valve efficiently releases trapped to maintain optimal performance. Constructed from durable brass, ensuring longevity and resistance to corrosion in both hot and cold water applications. Fits standard 1/2in-BSP pipe size, making installation straightforward without the need for special adapters. Prevents airlocks that can disrupt your hot water supply, ensuring uninterrupted hot showers and efficient water flow. Fully automatic operation eliminates the need for manual adjustments or bleeding, providing hassle-free maintenance for your plumbing system., Manufacturer: OTENG