50 Best Managed Company
Calco Environmental Group recognized by Deloitte as one of Canada's 50 Best Managed Company Award
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Apex Instruments

Apex Instruments was established in 1988 as an American-owned company with worldwide impact. For more than 22 years, Apex Instruments has manufactured equipment for sampling emissions from industrial chimneys and smoke stacks using US-EPA guidelines. Apex equipment is designed by a staff of experienced stack testers who understand your compliance testing needs.

Apex provides testing consoles, probes, pitots, umbilicals, glassware, filters and much more. They are innovators in engineering equipment that is versatile and easy to use and can design and fabricate customized equipment for isokinetic, gas and particulate sampling.

They have always been directly involved with the environmental industry, working close with the U.S. EPA. When the Clean Air Act was established in 1990 and hazardous air pollutants were identified for control, Apex Instruments was at the forefront of product design, method evaluation and implementation.

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Complete Catalog
Isokinetic Catalog
Mercury Catalog
Gas Analysis Catalog
Flow Pressure Catalog
Accessories Catalog