Copeland 020-0844-05 Seal

When you're out in the field and spot moisture or a low oil level in the compressor sight glass, you need a replacement that holds up under pressure. The Copeland 020-0844-05 Seal is a precision-engineered square ring gasket designed specifically for sight glass assemblies on Copeland refrigeration compressors. Built from high-grade black neoprene (chloroprene), this seal provides the chemical resistance required for modern HVAC refrigerants and lubricants, maintaining a leak-proof barrier from -40°F up to 250°F. With an inside diameter of 1.246" and an outside diameter of 1.444", this OEM replacement part ensures a perfect fit, preventing the refrigerant leakage that leads to system inefficiency and compressor failure. Whether you're performing AC compressor repair or routine refrigeration system maintenance, using the correct sight glass O-ring is critical for accurate moisture monitoring and long-term reliability in commercial or industrial applications.

• Precision Fit: 1.246" ID and 1.444" OD square ring design ensures a high-pressure seal for 4D and 6R compressor models.
• Durable Material: Constructed from black neoprene for superior resistance to oil degradation and thermal expansion.
• Refined Performance: Maintains system integrity to allow for clear visual inspection of oil levels and refrigerant flow.
• OEM Standards: Genuine Copeland 020-0844-05 specification eliminates compatibility issues common with universal gaskets.

Is this seal compatible with HFC refrigerants and POE oils?
Yes, the neoprene composition is designed to handle common refrigerants and POE or mineral oils found in commercial systems without swelling or degrading.

What causes a sight glass seal to fail?
Most leaks at the sight glass occur due to thermal cycling or gasket hardening over time, which can introduce moisture into the system. Replacing the 020-0844-05 seal during compressor service prevents these leaks.

Can I use this on any 1.25" sight glass?
While the dimensions are standard, this is specifically profiled as a square ring for Copeland compressor housings. We recommend verifying your specific model in the technical manual before installation.

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Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.