PresAir Trol Standard Air Button [1-⅝" HS, 2-5/8" FD] [White] (B225-WA) unions When labels are missing or

When labels are missing or worn

Choosing the fitting with the locknut included can help simplify the repair and improve installation confidence

Improves installation confidence and long-term maintainability

That can make installation cleaner and more practical when the blower location demands added cable reach

A thermostat helps regulate operating temperature in a compatible heater system

PresAir Trol Standard Air Button [1-⅝" HS, 2-5/8" FD] [White] (B225-WA) unions When labels are missing orThe PresAir Trol standard air button in white is intended for compatible 1 5 8 inch hole size installations with a 2 5 8 inch face diameter and offers a clean, traditional look for pneumatic controls. This style works well when the goal is to keep the control point simple, functional, and visually consistent with lighter trim finishes. This replacement is especially useful when the original button has yellowed, cracked, or stopped feeling dependable