Test Products International 621

Product Highlights

• Adjusting appliance regulators
• Setting delivery pressures
• Leakage shut-in tests
• Regulator adjustments for pressure and lock-up tests
• Test for leaks inlow-pressure gas systems
• Isolate difficult pressure problems on natural gas and propane systems
• Test pressure switch operation on a 2-stage gas furnace in both positive and negative pressures
• Static pressures in air ducts for air balancing
• Check air filters by measuring pressure drop

Each Unit Includes

• 9V Battery
• Soft Pouch
• 3-Foot Tubing (A602)
• 1/8 inch barbed fitting included
• 3-Year Limited Warranty