Coupler to fit Jem piping nozzles fits standard and large tips

This coupler accommodates larger and smaller piping tubes, which permits the user to interchange piping tubes.
Fits the following Jem Nozzles with small adaptor: 2B,2D,2F,113,115,116,121,123,172
Fits the following Jem Nozzles with large adaptor: 1B,1E,1F,1G,1J,2M,2R,2ES,250,252,2010

3 piece set