For over half a century, ZONEFIRST has been the industry leader in zoning.

Starting with the development of the first zoning dampers and registers in the 1950’s to today, with exclusive “Plug & Play” dampers – Zonefirst has led the way in excellence and continued innovation.

ZONEFIRST is the first company that successfully developed and marketed HVAC Zoning Systems back in the 1950’s and is today a leading manufacturer of HVAC zone dampers and zoning systems. Several other major zoning companies are in business due to ZONEFIRST.

Contact us for pricing and distributor information.

For more information please visit the ZoneFirst website.

Trolex now also owns ZONEX.

Zonex’s RetroZone system is the affordable, fast, easy solution to upgrade, older obsolete control systems! Update Older VVT, VariTrac, Parker or VAV Systems using the existing dampers or boxes on the job!

More information on Zonex at their website.