Parallel Tube Nut Inserts

Plastic Tube Threaded Nut Inserts or Threaded Plastic Nut Inserts for Tube, Nylon Nut Threaded Tube Inserts, Parallel Threaded Tube Plugs, Knock In Plastic Inserts, Inserts for Parallel Tube and Inserts with Nuts.  Designed to double up as an End Cap but also as a foot for parallel tube.

Tube Fittings Buying Guide