for Square Tube

Square Plastic Tube Inserts, also referred to as Square Plastic Feet, Tube Insert Bungs for Square Tube, Square Tube End Caps, Box Section Tube Plugs and End Caps, Square Plastic End Stops, Square Tube Bungs, Square Tube Cap Ends and Square Knock-In's, all designed to Plug & finish tube.

Tube Fittings Buying Guide