EZ Tube Boltless Construction System, Aluminum Tube, Steel Tube, Storage Products. 1.800.833.2522 or 570.724.7420 • Fax: 570.724.7989 • sales@eztube.com Home | About Us | Aluminum Tube | Steel Tube | Connectors | Accessories | Storage Products | Applications | Email Us | Request Catalog The E-Z Tube boltless construction system is a versatile, light duty construction system that offers a cost effective and simple method of constructing aluminum and steel tube frames. It eliminates the need for welding and grinding of corners and allows for easy assembly. Seven joint configurations