Welcome to Quality Gauge & Valve, we are the only Canadian manufacturer of flat glass liquid level gauges and their associate ... valves. We have been manufacturing this product since 1985. In addition to these items, Quality has dramatically expanded its manufacturing capabilities, and now offer a wide range of highly competitive products. Quality Gauges and Valves can be found world-wide in facilities from Eastern, Central and Western Europe, the Middle & Far East, North America, Central America and South America. Our products serve in many industries such as: - Refineries - Petrochemical - Natural Gas (including pipelines & compression stations) - Power Generation Plants - Water and Wastewater - Chemical - Pharmaceutical - Fertilizer - Pulp and Paper - Food and Manufacturing read more