This two-pack O-ring kit provides a practical replacement solution for maintaining the seals on King Frog Cycler 5400/5430, Sani-King 940/960/980, and Waterco valves. Each kit includes the specific O-ring sizes required to fit models 01-22-9926, W02068, and 367644, making it a direct substitute for original components. The set offers an economical way to restore proper sealing performance without purchasing separate individual rings.

The O-rings are molded from black nitrile rubber, a material known for its good resistance to oils, water, and moderate temperatures. Nitrile rubber maintains flexibility and compression set resistance, helping the rings stay in place under normal operating pressures. This composition suits applications where occasional contact with lubricants or mild chemicals occurs, such as in pool filtration or irrigation valve systems.

The rings exhibit consistent hardness and dimensional stability, reducing the risk of leaks when installed correctly. Each ring is manufactured with attention to uniformity in cross-section thickness and inner diameter. This precision helps ensure a snug fit within the designated grooves, minimizing the chance of extrusion or rolling during use.

Packaged as a set of two, the kit provides a spare or allows simultaneous replacement on multiple valves. The affordable price point makes it a budget-friendly maintenance option for equipment owners looking to extend the service life of existing valve assemblies without replacing the entire unit. Installation is straightforward for users familiar with basic valve disassembly.

The rings can be gently lubricated with a compatible silicone grease before fitting to ease placement. Routine inspection and timely replacement of worn O-rings help prevent water waste and maintain efficient system operation. This kit serves as a reliable, cost-effective sealing solution for the listed valve models.