This series of gauges is intended for general service conditions, for pressure or vacuum on air, oil, water, gas or other mediums that do not attack brass.

Both HVAC Gauges are highly sensitive, accurate and lightweight. They meet the requirements and needs of contractors in heating, plumbing, air conditioning and ventilating. They possess many features usually found on more expensive instruments.

Case size is 4-1/2" with 1/4" NPT lower connection for direct mounting. Accuracy is 1 % middle half and 2 % remainder, ANSI B40.1 Grade A. Movements are of brass construction for pressure ranges to 600 psi and bronze bourdon tube on Series CTS-1, copper alloy bourdon for CTA-1. Both have brass stock socket, 9/16" square.