| Type of product: | Pressure switch |
| Manufacturer: | Tecmark 3902 - 3903 is 3902 with screws. |
| Connection: | 1/8 inch MPT screw thread to attach to heater tube. Switching mechanism tabs at the sides are 2 x flat spade connectors to attach the contact wire. |
| Dimensions: | Height: 58mm Width: 50mm |
| Commonly used with: | This product is in very common use with Gecko, Spa Builders and Hydroquip control boxes. Used on tubs such as Arctic Spa, Coyote Spa, Dimension One, Sunrise, Hotspot, Gulf Coast, LA Spas, Artesian Spas, Gulf Coast, Inspirations, Hydrospa, Southwest Spas and more |
| Additional notes: | It sometimes varies in appearance and the later ones are smaller, red with a black underbelly.They do have a PSI gauge on the side but we would not usually recommend adjusting this, or if you do, do it very gradually. Most of the time you can tell if the pressure switch is seized because the small bearing inside will not rattle anymore. |
Tecmark Pressure Switch 3902
Balboa 3.0KW Heater with Pressure Switch
