Features: The Collar Rings Replacement features wear resistant plastic materials that provide sealing performances, reducing leaks and extending equipment lifespans for stable valves maintenance. With precisely engineered thickness ensuring over 95% sealing efficiency, this valves collar minimizes risks of air or liquid leaks in fluid controls systems, making it suitable for both gas and liquid applications. Designed for users of industrial machinery, home appliances, and mechanical equipment, this replacement part is ideal for technicians and enthusiasts handling models like 180, 280, and G52 Back Up Valves Collar. Perfect for diverse environments such as production lines, repair workshops, and household settings, the G57 Collar Rings ensures consistent performances in high temperature or high pressure conditions. Easy to install without tool, this versatile collar rings offer superior durability and compatibility, providing a cost effective solution for maintaining valves integrity across various devices. Specifications: Type: Valves Collar Component: Plastic Color: White Applicable Models: For G57/G52 Diameter: Approx. 3.74nch(9.5cm) Package Includes: 2x Valves Collar note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color from the item.