The FloPlast Compression MDPE Female Adaptor Fitting is designed to connect 25mm Cold Water MDPE pipes using a 1/2" female thread. It is available in various sizes to accommodate different pipe diameters and has a high impact resistant body and nut that can withstand thermal stresses. Features: Suitable for connecting 25mm Cold Water MDPE pipes, Available in various sizes with 1/2" female thread, Made from durable polyethylene material, High impact resistance body and nut. Benefits: Enhances the durability of the plumbing system by absorbing thermal stresses, Provides a secure connection between pipes, Designed to meet WRAS certifications. IMPORTANT SIZING NOTE - Most plumbing products are measured using BSP thread dimensions which measure 1/4 inch larger than that stated, therefore this 1/2 Inch BSP thread actually measures 3/4 Inch in diameter. If your thread measures 1/2 Inch in diameter then you require the 1/4 Inch version of this product. This listing is for a Pack of 1.