Johnson Controls P10PA-11C Penn Series P10 Low Pressure Control, 3 Stages, SPST Contact, 3-20 psi, 1/8″ Barbed Fitting

Amazon.com Price: $142.00 (as of 05/05/2021 19:23 PST- Details)

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Visible calibrated adjustable range scale
Package Dimensions: 5.0 H x 5.0 L x 5.0 W (inches)