Improve the efficiency of automatic pallet loading and unloading by eliminating bending, stretching and walking around the pallet. Both the Presto Airbag and Presto Spring actuated models adjust the load height automatically and require no power source. The model HP3-AA features a lifetime warranty on the airbag actuator. Air pressure gauge simplifies set up and adjustment for the load weight. FOB Shipping Point. Pricing subject to change notice without notice. See Related Items tab for Operator Controlled Pallet Positioner, Automatic Pallet Positioner with Spring and Pallet Positioner Accessories.