The TDI 3428 is a sleek, compact spa air button featuring a low-profile construction in a classic black finish. This Tecmark pneumatic control button is designed for installation in a 1-1/4" diameter opening and features a 1-5/8" face diameter for a clean, streamlined appearance on your hot tub topside.
This pneumatic switch arrives complete with a mounting gasket and securing nut for straightforward installation. Compatible with standard 1/8" to 1/4" air tubing, making it versatile for most spa control systems.
| Hole Size | 1-1/4" |
| Manufacturer | Tecmark |
| Face Diameter | 1-5/8" |
| Color | Black |