General description PolyMax Straight Coupler by Polypipe is designed to connect two lengths of 15mm plastic or copper pipe. This innovative push-fit plumbing range is ideal for various home improvement and refit projects, including hot and cold water systems. The fittings are slim, sleek, and attractive, making them perfect for surface-mounted installations. Technical specifications Type: Push-fit coupling Size: 15mm x 15mm Material: Polybutylene Colour: White Suitable for: Hot and cold water systems, heating systems in domestic properties Not suitable for: Transportation of gases, systems with a high concentration of Chlorine Compatibility and accessories Compatible with Polypipe White Polybutylene flexible pipe Requires a Polypipe metal or plastic pipe stiffener Pre-lubricated EPDM 'O' rings included Installation One-step operation for quick and easy installation Tool demountable and reusable Caution: Do NOT insert fingers into the fittings due to sharp grab rings Usage Ideal for