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Johnson Controls A421ABC-02C A421 Series Electronic Temperature Control, -40 to 212 Degree F Temperature Range, Single-Pole, Double-Throw : Amazon.ca: Industrial & Scientific
JOHNSON TEMP CONTROLLER - Canadian Homebrew Supplies Inc.
NEW JOHNSON CONTROLS PENN THERMOSTAT A19ABC-88 A19ABC88 50-130°F | eBay
PENN JOHNSON CONTROLS A27A2N21 TWO-STAGE THERMOSTAT W/O SENSORS FIELD CONTROLLER | eBay
Johnson Controls PENN Temperature Thermostat (Walk-In Box) Temp -30°F to +100°F | adhvacparts
Penn and Johnson Controls dial control (copper wire) - The Cellar LLC