Johnson Controls C-5222-1 Series C-5222 Adding/Subtracting Repeater, 1:1 Ratio

Amazon.com Price: $151.90 (as of 30/07/2021 08:22 PST- Details)

Make sure this fits by entering your model number.
Adjustable starting points: – 1:1 ratio model can be biased from +5 to -8 PSI (+35 to -56 kPa) – 5:1 ratio model can be biased from +5 to -13 PSI (+35 to -91 kPa)
Easily mounted with an optional mounting base kit