Vegetable Glycerin (vacuum gauge refill)* – Simple Pulse

1oz vegetable glycerin. This product is used to refill the vacuum gauge.Refill through the plug at the top beneath the vent option.Gauge should be about 2/3 full for most accurate reading.Gauge should be open (vented) during system use and closed when moving system.1oz vegetable glycerin only.Vacuum gauge image for ref

Primefit 200 PSI Glycerin Filled Pressure Gauge PGF200B14 - The Home Depot

Primefit 200 PSI Glycerin Filled Pressure Gauge PGF200B14 - The Home Depot

Vegetable Glycerin (vacuum gauge refill)* – Simple Pulse

DuraChoice 2-1/2 Oil Filled Vacuum Pressure Gauge

Stainless Steel Glycerin-Filled Filter Gauges

Primefit 200 PSI Glycerin Filled Pressure Gauge PGF200B14 - The Home Depot

Pressure Gauges - Liquid Filled

The 2-1/2 dial on these DuraChoice liquid filled pressure gauges is readable from a considerable distance. The stainless steel case protects against harsh environments and the glycerin filling promotes longer service life because it helps dampen vibration and pulsation. The glycerin also discourages condensation from forming and obscuring the readout. As far as manometers go, this is a great choice for water, oil, gas (WOG), diesel or other hydraulic applications.

2-1/2 inch Oil Filled Vacuum Pressure Gauge for Air Compressor Water Oil GAS - Stainless Steel Case, Brass, 1/4 inch NPT, Lower Mount Connection

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Pressure Gauges - Liquid Filled

UHARBOUR Glycerin Filled Low Pressure Gauge 10psi/0.7bar, Stainless Steel case, Brass Inside Construction, 2-1/2 dial, 1/4NPT Rear Connection. : Industrial & Scientific

Pressure Effect on the Speed of Sound of Waste Cooking Oil Biodiesel