Sludge Mate container filters from Flo Trend Systems dewater biosolids, water treatment residuals, septage, grease trap and slaughterhouse waste, and sump bottoms. The closed system provides odor control, no spillage, reduced maintenance and weather independence. Units have 10-gauge reinforced walls and a seven-gauge steel floor. Options include peaked roofs with gasketed, bolted-down access hatches, drainage ports, inlet manifolds, floor filters and side-to-side rolling tarps. They are available in roll-offs and in trailer and tipping-stand mounted configurations. Capacities range from 5 to 40 cubic yards. 713/699-0152; www.flotrend.com.