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The McDonnell & Miller 318827 is a high-quality replacement O-Ring designed for Series 69 low water cut-offs and E-8 level controls in HVAC systems. This O-Ring ensures a reliable seal, preventing fluid leakage and maintaining system integrity.
This O-Ring is crafted from a robust elastomeric material that exhibits excellent resistance to wear and tear, chemicals, and extreme environmental conditions. Its square cut design enhances sealing efficiency, making it ideal for high-pressure applications.
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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