Glycerin Filled Vacuum Gauge with 1/4" NPT Back Mount -30inHg-0Psi HPS Black Soft rubber grips &

Black Soft rubber grips & the 9-inch aluminum tube allows maximum leverage & force

the high-density LEDs are more power-efficient and produce less heat

Raised bottom and unique multi-drainage holes and slits for optimum aeration of the root zone

and then replace with a fresh nutrient solution

and save energy

Glycerin Filled Vacuum Gauge with 1/4" NPT Back Mount -30inHg-0Psi HPS Black Soft rubber grips &BVV 30inHg 0Psi BVV Glycerin filled vacuum gauge has a 1 4" MNPT brass connection with a readout of ( 30) inHg 0 PSI. The outer diameter of the gauge measures 2. 25" We provide adapters to fit your setup in MNPT, FNPT, MJIC, FJIC, and standard compression tubing.