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VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 0
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 1
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 2
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 3
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 4
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 5
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 6
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 7
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 8
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 9
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 10
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 11
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 0
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 1
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 2
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 3
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 4
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 5
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 6
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 7
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 8
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 9
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 10
VINTAGE DA-21 MERCOID PRESSURE CONTROL - GLASS LENS FRONT, IN GOOD CONDITION., US $228 – Picture 11

Vintage Da-21 Mercoid Pressure Control - Glass Lens Front, In Good Condition.

US $228

  • Apache Junction, Arizona, United States
  • Mar 28th
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 I have no idea what kind of electrical machine or electrical system a gauge like this is used. I bought it at an estate auction, and all I know is the former owner was an Electrician. I have no way of testing it so I am selling it (cheap,) as is, however, if it was of no use, why would it still be with his other gauges and tools etc., that were sold at the auction. I took the cover off in one picture to show that it is complete inside, including a tube that moves back and forth, and it has the liquid in it. I will put tissue inside when mailing to stop it from moving back and forth during the trip. That tube reads: 8-51  AC. - D.C. along with other numbers, not sure what they are. The Silver Dial reads: MAX PRESS 200 DO NOT EXCEED - MIN DIFF 6# - LBS PRESSURE and it has Arrows going left and right with numbers from 0 to 100. The two Brass Arrows adjust with the two outer knobs that turn. I think the rest is best explained with my pictures, including the outside plate with all the information. 
“I have no way to test it, but it looks to be in very good condition.”
Brand MERCOID
Country/Region of Manufacture United States
Model DA-21 PRESSURE CONTROL

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