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The MIDLAND INDUSTRIES 73230B is a Nylon 12 tubing coil designed for fluid and air transfer applications in plumbing, HVAC, pneumatic, and instrumentation systems. Measuring 0.08 inches inner diameter and 0.125 inches outer diameter with a 0.022-inch wall thickness, this 100-foot coil delivers a working pressure rating of 420 psi. The black nylon construction offers a Rockwell 78 R hardness and Shore D 70 durometer rating, making it a durable choice for routed tubing runs where flexibility and pressure integrity are both required. Licensed plumbers, HVAC technicians, and industrial piping professionals are the typical installers of this product.
This tubing is suited for residential and light commercial applications where a compact, flexible line is needed to connect control valves, pneumatic actuators, instrumentation ports, or low-pressure fluid circuits. The Nylon 12 formulation performs across a wide temperature range of -60 to 200 degrees F, making it appropriate for both outdoor and mechanical-room installations. The 100-foot coil length supports longer runs without splicing and reduces material waste on typical service calls or new installs.
Designed as an OEM-style and aftermarket replacement tubing for pneumatic control lines, instrumentation systems, and fluid transfer applications requiring flexible nylon tubing with a 1/8-inch outer diameter.
Installation should be performed by a licensed plumber, HVAC technician, or qualified instrumentation mechanic familiar with applicable local codes. Depressurize and isolate the line before cutting or connecting tubing. Use appropriate nylon tubing cutters to ensure a clean, square cut at connection ends to maintain a proper seal with push-to-connect or compression fittings. Avoid routing tubing near sharp edges or heat sources that exceed the rated temperature limit.
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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