Skip to content Fluke 3990 Manual Pressure Control Packs
- Self-contained for ease-of-use
- Includes precision adjustor to allow increments as fine as 0.00025 psi
- 1000 and 3000 psi models also provide absolute and negative gauge mode
- Includes metering valve for fine control
- Vent valve provides easy means to vent pressure to atmosphere
- Convenient 1/4 inch NPT connections