This wing nut is for the Aquacare AP-S UV system. It is used to secure components firmly without tools and provides quick, easy access during maintenance or service. The wing nut is made from a hard-wearing material and withstands daily use in demanding environments. Key benefits: Compatible with AP-S models from Aquacare. Secure fitting and removal without tools. Made from a hard-wearing material. Ideal for service and maintenance. Please get in touch if you are unsure whether this wing nut fits your system.