PC-45 saves times and improves results. It gives you immediate power to eliminate difficult spots during your cleaning process. Use it to blow away troublesome spots that defy your normal pre-spray and extraction. Simply spray the spot, agitate and watch it disappear as you extract. PC-45 is ready to use. Simply put a trigger sprayer (set to coarse spray) on the bottle then keep it handy on your belt as you clean. When you encounter a troublesome spot, just shoot it, agitate, and continue with your extraction. Remember to keep the ultimate stain removers (Red Relief and Stain Magic) available to remove permanent stains.