Midland Industries 20708A Swivel Elbow Brass Fitting

Product Description

The MIDLAND INDUSTRIES 20708A is a brass swivel elbow fitting designed to join pneumatic or fluid lines at a 90-degree angle. One end accepts 4 mm tubing via a push-to-connect mechanism, while the other end threads into a 1/8-inch male global thread port. The swivel design allows the body to rotate after installation, making it easier to align tubing runs in tight or awkward spaces. Fabricated from brass, the fitting delivers solid corrosion resistance and durability in compressed air, light hydraulic, and instrumentation applications. Plumbers, HVAC technicians, and industrial maintenance professionals install this type of fitting when routing small-diameter tubing to equipment ports.

This fitting is suited for residential and light commercial applications where 4 mm OD tubing connects to a 1/8-inch male global threaded port. Common scenarios include pneumatic control lines, compressed-air instrumentation panels, condensate or fluid transfer assemblies, and HVAC control tubing. The push-to-connect end allows fast, tool-free tubing insertion, while the threaded end engages equipment manifolds, solenoid valves, or control devices with 1/8-inch global thread ports. The swivel elbow configuration reduces strain on tubing and simplifies routing in confined installations.

Key Features

• Push-to-connect inlet accepts 4 mm OD tubing without tools for fast assembly
• 1/8-inch male global thread outlet for broad compatibility with standard ported equipment
• Swivel body rotates after makeup to allow precise tubing alignment
• Brass construction provides corrosion resistance for air and fluid service
• 90-degree elbow geometry reduces tubing bend radius in tight spaces

Compatibility

Designed as an OEM-style replacement or new-installation fitting for systems using 4 mm OD push-to-connect tubing with 1/8-inch male global threaded ports in pneumatic, instrumentation, or HVAC control applications.

Installation Notes

A licensed plumber, HVAC technician, or qualified industrial mechanic should install this fitting. Depressurize and isolate the system completely before removing any existing fittings or inserting tubing. Apply thread sealant or PTFE tape to the male global thread end per the equipment manufacturer's recommendation before threading into the port. For the push-to-connect end, ensure the 4 mm tubing is cut cleanly and squarely and inserted fully until it seats against the internal collet.