EV1520 Heavy Duty Inground LiftsChallenger is the exclusive manufacturer of the only 15,000 lb. capacity heavy duty inground lifts in the market. The EV1520 Heavy-Duty arms are engineered to lift heavier commercial vehicles and require less shop space than heavy-duty two post lifts, making the EV1520 inground lifts a great choice.The EV1520 heavy duty inground lifts are equipped with standard, medium and high extension stack adapters to accommodate a wide variety of Heavy-Duty vehicle lift points. Our Heavy-Duty Inground Lifts are fully contained in a recycled polymer housing to protect your investment and the environment.Our traditional EV1520 inground lifts include Part# 10315 Stack Adapter Extension Kit , #10318 Four Frame Engaging Truck Adapters, #10317 Four Reducer Bushings for use with 10318. Frame engaging adapters (Part #10314 or 10318) are REQUIRED when lifting vehicles with frame construction.