The O-Ring for 3/4″ Qwik-Lok parts by Flow-Rite is a replacement seal that provides a secure and tight fit for the various Qwik-Lok fittings and adapters. This O-Ring is designed to fit snugly between two mating surfaces, preventing leaks and ensuring a secure connection. It is made of high-quality materials that are resistant to wear and tear, and it has been engineered to withstand harsh marine environments. This O-Ring is specifically designed for use with 3/4″ Qwik-Lok parts, ensuring a precise fit and optimal performance. It is easy to install and provides a reliable solution for maintaining the integrity of your marine plumbing system. Whether you are replacing a worn-out O-Ring or building a new plumbing system, the O-Ring for 3/4″ Qwik-Lok parts is a must-have accessory for any boater or marine enthusiast.