Thermo Pride TRJ-1 Roof Jack, 1"

Thermo Products Parts TRJ-1

Sid Harvey T397-424 Duct Strap Nylon

Sid Harvey T397-424

Thermo Pride VP-1 Stainless Steel Vent Pipe, 4", 34" L

Thermo Products Parts VP-1

Starting with the development of the first zoning dampers and registers in the 1950s 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 1950s and is today a leading manufacturer of HVAC zone dampers and zoning systems. Several other major zoning companies are in business due to ZONEFIRST.
It was in the mid to late 1950s when Richard Foster developed the first automatic motorized dampers, registers and difusers that were thermostatically controlled. He marketed these products under the trade name Zone-A-Trol with another company when in 1964 he founded Trolex Corporation and the start of the well known trade name Trol-A-Temp. In 1999 the Trol-A-Temp brand was acquired by Honeywell.
Since that time, Trolex has continued to manufacture zone dampers for a number of OEMs. In 2004 Trolex re-entered the HVAC market as ZONE-A-TROL and later the ZONEFIRST tradename. This new name signifies the many firsts the company has developed in the HVAC industry. We were the first company to develop automatic dampers, registers, and diffusers for zoning, centralized zone controllers, the first zoning system to feature normally open dampers and the first to zone heat pumps in the early 1970s

Zone First ZDSM0808

Outstanding Performance:
This damper was specifically designed with R8 insulation specification in mind to contribute to energy savings and help the system pass efficiency audits. Best of all, it helps eliminate hot and cold spots, the biggest cause of callbacks. The improved internal design creates a slower return that ensures a quiet operation.
Installation Made Easy
For fast, accurate installation with no callbacks, the TrueZONE Damper has you covered with a range of features that simplify installation in most applications:

Adjustable Range Stops  Easy to understand and set by utilizing a pushin lever. Theyre used to bleed air into the zones which helps lower pressure and reduce noise.

Push-In Terminals  The same easy wiring design used on TrueZONE Panels. No tools needed, has space for two wires.

Taping Flange  Lets you position insulation under it before sealing with foil tape.

Mechanical Position Indicator  Easy viewing through a clear window.

LED Indicator Lights  Red indicates the damper is closed and green indicates open (used in 3-wire applications)

Honeywell ZD8X8TZ

Supco ZIP-EZ Insulation Fastener

J.T. Products ZIP-EZ

Duro Dyne 10171 Flexible Duct Connector Econ-O-Fab Excelon

Duro Dyne 10171

Tjernlund DB-2-6 Galvanized Steel Housing Inline Duct Booster Fan

• Drip proof - non ventilated thermal protection
• The DB-2 duct booster is designed to increase the flow of heated air in warm air heating systems or cooled air in central air conditioning systems
• The duct booster can be mounted on round or flat ducts
• 120 VAC
• 0.51 AMP
• 200 CFM
• 1550 RPM

Replaces Part #:'s : x89-411,
,

Tjernlund 104-11

Sealed Unit Parts DB8 Duct Booster, 8", 120 VAC at 60 Hz, 0.75 amp, 60 watt

Sealed Unit Parts 104-8