- "Differential Range" is a required field.
![](https://www.dpgaugestore.com/wp-content/uploads/2019/04/backflowtestkitslogowhite.png)
The Mid-West Advantage
- 5 year warranty
- 30 + Years Hazardous Location product manufacturer.
- OEM and Private Label Capabilities
- Fast on-time Deliveries
- Friendly Customer Support
- Certified Quality System CSA B51-09 SAI GLOBAL
- UL Listing
- CSA Listing
843Specification
![](https://www.dpgaugestore.com/wp-content/uploads/2019/04/filewhite.png)