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The JB Industries JB-NFT5-4 is a Quick Seal O-Ring cap for 1/4 SAE male connections. These caps ensure a secure finger-tight seal for deep vacuum and A/C refrigeration tasks. Made from American-manufactured brass, they provide durability and resistance to corrosion. They can be used with various tubing materials, including copper, brass, aluminum, steel, and plastic, as long as the appropriate flare is achieved.
This O-Ring cap is specifically designed for professional use in HVAC and refrigeration 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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