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The STERLING SEAL & SUPPLY 221-7470 is an O-ring made from NBR, also known as Nitrile Butadiene Rubber. This material is effective in sealing fluids and gases. The O-ring has a durometer of seventy, which means it can withstand pressure without deforming.
This O-ring conforms to the AS568 series standard, ensuring compatibility in various applications like HVAC systems and plumbing setups.
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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