Husky Portable Containment offers both steel or alum folding frame tanks. Our exclusive Easy Lift Handles on the floor of all of our liners (US Patent No. 8,746,478 and other patents pending) making our Folding Frame Tank the easiest and quickest to fold and permits easy removal of any standing water. Our frames are pinch-free, with safety in mind! Call us Monday-Friday 7 am-5 pm with any questions. For more information, go to http://www.huskyportable.com