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The HAM-LET 3000621 is a compression tube female branch tee designed for secure, leak-tight fluid and gas line connections in industrial and mechanical systems. This fitting features compression connections on two ends and a female NPT thread on the branch port, allowing technicians to tap into an existing compression tube run while accepting a threaded line or instrument connection. Constructed from 316 stainless steel, it offers strong resistance to corrosion and is well suited for demanding process, instrumentation, and HVAC applications where material integrity matters.
This fitting is used in residential and commercial mechanical systems wherever a branch connection is needed in a compression tube assembly. Typical applications include refrigeration line sets, instrumentation tubing, compressed air distribution, and process fluid handling. The FNPT branch port accommodates standard pipe thread fittings, making it straightforward to integrate into mixed connection systems. Licensed HVAC technicians, plumbers, and instrumentation mechanics are the primary installers of this type of fitting.
Designed as an OEM-style replacement or new-installation fitting for compression tube systems requiring a female branch tee connection in 316 stainless steel with a 3/8 inch FNPT branch port.
Installation should be performed by a licensed HVAC technician, plumber, or qualified instrumentation mechanic. Depressurize and isolate the line completely before disassembling any existing fittings or installing this tee. Ensure tube ends are cut cleanly and deburred before inserting into the compression connections, and tighten compression nuts to the fitting body per standard practice without over-tightening, which can deform the ferrule. Verify all connections are leak-free under system pressure before returning to service.
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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