Up for auction an instrument used for draft, pressure, or differential pressure. Features all aluminum case with glass front, glean out plug, zero check cock, external scale adjustment, and mounting bracket with micrometer leveling means. Scale lengths up to 40.” *Item extremely clean with perfect glass.
for sale.....new Dahl brass pet / gauge cock valve......both ends are 1/4 NPT threaded.........original part number is 121-51-51.........6 valves for 30 dollars plus 20 dollars shipping
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