The PresAir Trol gunite air button in white is designed for compatible installations using a 1-1/4 inch hole size and 1-1/2 inch face diameter. In gunite-style applications, choosing the right button format helps preserve both fit and finished appearance at the control point.This version is especially useful when the original button has cracked, discolored, or no longer feels dependable during use. Replacing it can freshen the look of the installation while restoring the pneumatic control response the system depends on.It is a practical choice when you want a replacement that suits the intended application style rather than settling for a generic button that may not look or fit as well. PresAir Trol gunite air button in white 1-1/4 inch hole size with 1-1/2 inch face diameter Designed for compatible gunite-style applications Useful when the original button is worn or mismatched Supports better fit, appearance, and control feel