A high-performance antifreeze valve specifically designed to protect water-based Heat Pump systems Manufactured from brass for robust, durable and long-term operation Industry leading KV values for high performance. Automatic operation when the circuit temperature reaches below 3 degrees celsuis Supplied with both Male and Female BSP connections for ease of installation on the flow and return pipes Available in different sizes to ensure full compatibility for multiple applications Manufacturer Stock Code: 62664 EAN Code: 5014551626645 Sub-Category: Physical Brand: Fernox Range: TF1 Category: Water Treatment Type: Anti-Freeze