Glass Technologys advance Pre Resin Injection Suspension Method (PRISM) the Maxim High Pressure or Standard Injectors with a side chamber are the most efficent and effective injectors available to a windshield repair technician. Here is why it works so well. Most Repair systems put the repair resin into the injector first then try to vacuum out the air thru the resin this makes it very difficult to achieve a perfect repair. With patented Prism technology we load the resin in a seperate side chamber keeping the resin away from ther glass unitl the vacuum cycle is completed. Once the vacuum cycle is completed the side chamber releases the resin and a pressure cycles is applied. With Prism Technology quaility repairs can be easily repeated everytime. Stainless Steel machine case and SS injectors with lifetime warranty.