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The Johnson F-300-21 is a coupling fitting designed to connect pneumatic tubing with a diameter of three eighths inch on one end and one fourth inch on the other end. It is suitable for various HVAC applications where reliable tube connections are essential.
This coupler is easy to install and provides a secure connection to avoid leaks in pneumatic systems. It is a key component for HVAC technicians looking for effective pneumatic fittings.
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