A dial gauge measuring vacuum levels in inches of mercury (Hg). Scale 0-30 in Hg. Installs with a 1/4" male pipe thread. Can be used to check vacuum at the pump, releaser, or throughout the maple sap tubing system.
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A dial gauge measuring vacuum levels in inches of mercury (Hg). Scale 0-30 in Hg. Installs with a 1/4" male pipe thread. Can be used to check vacuum at the pump, releaser, or throughout the maple sap tubing system.