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The MIDLAND INDUSTRIES 26123 is a captive sleeve union elbow fitting designed to create a 90-degree directional change in a compression tubing run. It connects two 3/16-inch compression lines using a captive sleeve nut - specifically the 26002 captive sleeve nut - which keeps the sleeve retained on the fitting body and prevents it from being misplaced during installation or servicing. Constructed from brass, this fitting provides reliable sealing performance in fluid and gas lines where vibration resistance and leak-free connections are required. It is installed by licensed plumbers and HVAC technicians working with small-diameter tubing systems.
This union elbow is suited for residential and light commercial applications where a 3/16-inch compression-to-compression 90-degree connection is needed. Typical use cases include fuel lines, refrigeration pilot lines, pneumatic control tubing, and other small-bore instrument or process lines. The captive sleeve design is particularly useful in tight service environments where loose sleeve components create a service challenge.
Designed as an OEM-style brass compression fitting for use with 3/16-inch compression tubing in residential and light commercial plumbing, HVAC, or instrumentation applications. Intended for use with the MIDLAND INDUSTRIES 26002 captive sleeve nut.
Installation should be performed by a qualified plumber or HVAC technician familiar with compression fitting assembly. Shut off the supply line and relieve system pressure before disassembly or installation. Do not overtighten compression nuts - hand-tighten then advance with a wrench only as needed to achieve a leak-free seal. Follow applicable plumbing codes, including IPC guidelines, for the specific fluid or gas medium in the line.
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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