Tescom Emerson Obratech TEM Filtered Miniature Gas Stick

Part#  M4-52RT-H-F-30

Part# decoded:

M4 - Series

"5" - LOTO Valve, Inlet to Regulator

"2" - 3-60 PSIG

"RT" - 1/4" Female swivel

"H" - High Flow

"F" - Filtered

Looks to be in great used condition. Got this at a govt lab auction.