Fire Protection Underground Indicator Post 
Use with NGA32 Series NRS Gate Valve, underground indicator post has 8 feet barrel stem which can be fitted to needed length to control open and shut of valve in underground fire service mains. 

Model: UIPG38 Series
Design Standard: NFPA 24
Size: for NRS Gate Valve 2"-24"
Body: Ductile Iron
Body Coating: Epoxy Resin Fusion Bonded
Stem: Stainless Steel, ASTM SS304

Resources

Technical Datasheet Arita UIPG38-Underground Indicator Post