Before revision: Push-to-pull, push-to-connect, push-in, push-fit, or instant fittings are a type of compression fitting or quick connect fitting that allows an air (or water) line to be attached, nominally without the use of tools (a tool is still usually required for cutting tubing to length ).
After revision: easily removedand removalPush-to-pull, push-to-connect, push-in, push-fit, or instant fittings are a type of compression fitting or quick connect fitting that allows an air (or water) line to be attached, nominally without the use of tools (a tool is still usually required for cutting tubing to length ).