Dixon, 688X4, 1/4" Brass Push-In Straight Male Connector,Thread Size 1/8"UseSuitable for vacuum serviceWorking pressure: suitable for use up to the maximum working pressure of the plastic tubing used.FeaturesPositive seal: no leaks, after tubing is inserted, seal is madeSecure tube retention: pulling on tubing only serves to tighten the connectionFull flow design provides up to 60% more flow than conventional fittings with internal tube supports.Pre-applied PTFE based pipe sealant on all male pipe threads saves customer additional labor.ConstructionBrassInstallationSaves up to 75% of assembly time versus the standard compression fittings.Quick connect: simply push tubing in, no tools required.Quick disconnect: hold two fingers on insert and pull tubing out, no tools required.Reusable: connect and disconnect numerous timesSafety notesFittings are suitable for use up to the maximum working pressure of the plastic tubing usedWARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Do not use in connection with drinking water. Wash hands after handling.