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The Firomatic 12420 is a 3/8 inch ODF inline check valve designed to prevent back-flow in fuel oil lines. It features a Viton equivalent seal for durability. The valve is suitable for kerosene and No. 2 fuel oil, making it effective for various heating applications.
This valve helps ensure safe and reliable operation in fuel oil 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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