Dwyer Instruments 1212 Slack Tube Gas Pressure Kit with Manometer

The Dwyer Instruments 1212 Gas Pressure Kit is a complete, professional-grade pressure measurement solution designed for HVAC technicians and service professionals. This comprehensive kit includes a 1211-16 Slack Tube Manometer with an 8-0-8 inch water column range, making it ideal for checking gas pressures in virtually all gas appliances including furnaces, boilers, and other gas-fired equipment.

Key Features:

• Laboratory-accurate Slack Tube Manometer that rolls up compactly for easy storage and transport
• 8-0-8 inch water column (w.c.) pressure range with dual scale calibration
• Molded nylon tubing connectors with rapid shutoff design - one turn to open or seal
• Over-pressure safety traps prevent fluid loss from surges or over-range pressures
• Flexible vinyl-plastic columns with center-mounted spring steel scale to eliminate parallax error
• 2-inch sliding zero adjustment for precise calibration
• Magnetic clips for hands-free mounting to any steel surface
• Suitable for intermittent total pressure up to 50 psi and vacuum not exceeding 20 inches Hg
• Maximum working temperature: 130°F

Complete Kit Includes:

• 1211-16 Slack Tube Manometer (reads pressure to 16 inches water)
• Durable plastic carrying case (8-1/2" x 7" x 3-1/8")
• 1 oz. bottle of Fluorescein green color concentrate with wetting agent
• Two 1/8" pipe thread rubber tubing adapters
• 1/8" to 1/4" pipe thread bushing
• 3-foot length of 3/16" rubber tubing
• Rubber tubing adapter for standard 7/16" diameter spud connections
• Complete instructions for setup and operation

The Slack Tube design provides accuracy comparable to laboratory U-tube manometers while offering superior portability and durability for field service applications. Applications include filter monitoring, duct static pressure measurement, gas appliance pressure verification, and damper position setting. The manometer uses distilled water with the included green concentrate for optimal visibility and accurate readings.