AST-0750-1R pump tanks from Den Hartog Industries are cost- effective, economical and environmentally friendly alternatives to the company’s original septic tank line. They are the same strength and quality, built from the same mold, but are manufactured using reclaimed polyethylene, with equivalent mechanical strength to that of virgin materials. They offer up to a 30 percent cost-savings and serve as a direct replacement for expanding existing or for future septic product installations. 712-752-8432; www.denhartogindustries.com.