The Pentair 35505-1423 O-Ring is an important sealing component that prevents leaks and ensures the proper operation of HVAC systems. This O-ring, which is composed of sturdy rubber, offers a tight seal in a variety of settings, especially in equipment used for air and water handling. Its black hue denotes the typical rubber composition, which is renowned for being resilient and flexi... https://www.usapoolshop.com/35505-1423-pentair-o-ring