Pro-Tech IST Sno Pushers are the only ones that offer a steel trip edge designed specifically for containment plows. They excel at removing hard pack and "scraping."
Ice-Scraping Technology for "scraping" is excellent at removing hard pack snow. Parking lots that get a lot of traffic and create hard pack are great sites for the IST to shine. If salt is a large expense, the IST is a good option because it can clean stubborn hard pack that would normally require salt or chemical to melt.
Pro-Tech IST Sno Pushers account for equipment weight and force, and their design puts pressure and balance mainly on the shoes, not the edge. The IST is designed for high productivity, safety and performance quality.