Flame King 40lb OPD Valve for Hog or Horizontal Propane Cylinder Grow Light Ballasts or light candles

or light candles

it is lightweight and easy to carry and store

and is relatively non-toxic

"The 55-gallon format is exactly what we needed

pre-watering of crop is strongly suggested)

Flame King 40lb OPD Valve for Hog or Horizontal Propane Cylinder Grow Light Ballasts or light candlesEnsure safe and reliable propane storage with the Flame King PDQOPD AS40H OPD Service Valve, designed specifically for 40LB horizontal HOG propane tank cylinders. This Overfill Protection Device (OPD) automatically shuts off the flow of propane once the tank reaches 80% capacity, helping prevent overfilling and enhancing overall safety. Constructed from high quality, UL listed materials, this valve delivers dependable performance for long term use.