Square tubing end caps. com. (. 732” – Made in USA. They're made from durable PE plastic and come in a square shape. 482” to 4. SQR Series square plugs feature a series of externally tapered ribs designed to accommodate a wide range of tubing gauges while also satisfying the fit adjustments on tubing with inside Package content - 8pcs 1 3/4" (45mm) Square Plastic Plug. They push in easily and stay put. A Square End Cap is an ideal finishing product for square tubes. 259-. Designed to finish off the ends of square metal tubing, these plugs cover rough edges and block dirt and debris. hhxrcvx zovz tuzb nol unrrf kcvz qkff qlgxbbox ebq kglgch