Check the listing for details. GRAINGER APPROVED 700561-02 Insert,Low Lead Brass,Insert,1/8In 46M543. Condition: New. Listed at 2.07 USD. Insert, Application Air, Non-Potable Water, Compatible Fitting Connection Type Compression, Compatible Tube Outer Diameter 1/8 in, Compatible Tube Inner Diameter 1/16 in, Fitting Material Brass, Maximum Operating Pressure 400 psi, Maximum Operating Temperature 250 Degrees F, Overall Length 7/16 in, Specific Fitting Shape Tube Insert, System of Measurement Imperial, Standards NSF/ANSI 61 Annex G, Compatible Tube Material Aluminum, Copper, Thermoplastic, Minimum Operating Temperature 65 Degrees F Eliminate the need to flare, solder, or otherwise prepare tubing before assembly with this insert. The fitting is suitable for use with annealed copper, aluminum, and thermoplastic tubing where excessive vibration or tube movement is not involved. Insert is certified for use in potable water applica.