MEDIUM-DUTY Avalanche MD (Medium-duty) is a high molecular weight (HMW) polyethylene extrusion. This liner is for medium-duty hauling only - dirt, clay, farm commodities and light rock. No asphalt is to be hauled at any time with this liner. Liner thickness ranges from 1/4” to 1/2” with widths available in 96” to 118”. • Lighter hauling. • Economical price. • Medium grade. • Slide capabilities +6. Custom sized liners available in any grade. Call for Details.