Premium 304 Stainless Steel Compound Gauge with Brass Internals, -30 inHg/0/100 PSI, 2-1/2 Inch Dial, 1/4 inch NPT Bottom Mount Options:With 3 Pt. Cert. of Calibration The AX series housings are

The AX series housings are constructed of heavy duty aluminum with built in shutters that automatically open when the fan starts and gravity closes when the fan stops

so PRM manufactures these standard flow control rotameters with a heavier duty body and mounting bosses to make the rotameters stationary and prohibit flexing

Internals: Brass

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Premium 304 Stainless Steel Compound Gauge with Brass Internals, -30 inHg/0/100 PSI, 2-1/2 Inch Dial, 1/4 inch NPT Bottom Mount Options:With 3 Pt. Cert. of Calibration The AX series housings arePremium 304 Stainless Steel Compound Gauge with Brass Internals, 30 inHg 0 100 PSI, 2 1 2 Inch Dial, 1 4 inch NPT Bottom Mount Range: 30"Hg 0 100 PSI Dial Size: 2. 5 Inch Connection Type: 1 4 Inch NPT Male Connection Location: Bottom Body Material: 304 Stainless Steel Internals: Brass Lens: Acrylic Liquid filled with glycerin to dampen the effects of vibration and extend the life of the gauge Useful for Air and Water Applications Available with