Performance Plus Ammonia Free Glass & Surface Cleaner is a ready-to-use blue liquid designed for cleaning glass, mirrors, and other water-safe surfaces. It delivers a shiny, streak-free finish and can be applied using spray, wipe, or squeegee methods. This cleaner comes in 1-gallon containers, packaged 4 per case, suitable for janitorial and maintenance use where ammonia-free formulas are preferred.