Overview Reviews Product Description Spaenaur Master Catalog Product Videos Custom Field Package quantity 20 Product Reviews Write a Review Write a Review × Spaenaur Round Tube Connector 1 3/4" Tube Od X 16-18 Gauge X 5/16"-18 Unc Spring Steel Plain 112-191 Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Review Subject * Comments *