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The York S1-Z4-0300235 is a service valve cap designed for a three-eighths inch valve. This cap secures the valve opening, providing a seal that prevents leaks and contamination in the system. It helps maintain the system's integrity by sealing the valve when not in use.
The service valve cap protects the valve, enhancing the efficiency of HVAC systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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