?Designed, manufactured and assembled in the UK by John Guest Speedfit. Connectors use a grip then seal collet arrangement. The female coupler is ideal for the connection of taps, and Toilets. Simply push the fitting fully onto the pipe and turn onto the thread. Should the need arise to demount the connection unlock the nut push the collet towards the body of the fitting and pull the pipe to release. Additional Details ------------------------------ Bullet point: SECURE CONNECTION FOR RO SYSTEMS: Ensure a reliable connection in your reverse osmosis water filter system with the John Guest Female Flare Connector. This connector features a 3/8" OD x 1/4" FFL that allows for easy installation. Its female flare connection provides a secure fit when connecting to male fittings, making it ideal for various components within your water filtration setup. Whether connecting the RO unit to the faucet or other component, this connector ensures optimal performance. Product description: Designed, manufactured and assembled in the UK by John Guest Speedfit. Connectors use a grip then seal collet arrangement. The female coupler is ideal for the connection of taps, and Toilets. Simply push the fitting fully onto the pipe and turn onto the thread. Should the need arise to demount the connection unlock the nut push the collet towards the body of the fitting and pull the pipe to release.