Vintage NOS Mercoid DA-531 Mercury Pressure Switch Brass Bourdon Tube Steampunk
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Vintage NOS Mercoid DA-531 Mercury Pressure Switch Brass Bourdon Tube Steampunk:
$109.99
New old stock Mercoid Da-531 pressure switch in the original box. All brass with the mercury filled bourbon tube. Measures about 6\" in diameter. Free insured shipping to the lower 48. Thanks for looking!
Vintage NOS Mercoid DA-531 Mercury Pressure Switch Brass Bourdon Tube Steampunk:
$109.99