Adjustable Fit
Fits standard furnace widths from 14" to 24". Adapts one coil size up for rebate and airflow purposes: 14 to 17, 17 to 21, or 21 to 24.
Universal furnace-to-coil spacer
CT1424 Adjustable Coil Transition
A universal furnace-to-coil spacer that improves airflow, raises the evaporator coil, and makes installs cleaner and faster.
14"-24"standard furnace widths
4.5"standard height
0.1" WCstatic pressure reduction target
Installed between furnace and coil
Furnace → CT1424 → CoilThe transition creates room for air to move before it enters the evaporator coil.
Product video
See How the CT1424 Works
Watch the CT1424 installed between the furnace and coil, showing how the transition raises the evaporator coil and creates a cleaner airflow path.
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What it is
What Is the CT1424?
The CT1424 is an adjustable sheet metal transition that installs between the furnace and evaporator coil. It raises the coil above the furnace to create a smoother airflow path and reduce restriction at the base of the system.
FurnaceBase system outlet
CT1424Adjustable coil transition
CoilRaised evaporator coil
Without CT1424
Air is forced through a tight opening when the coil sits directly on the furnace.
With CT1424
The raised coil gives air room to transition smoothly before entering the coil.
Why it matters
Fix the Airflow Choke Point
When the coil sits directly on the furnace, airflow is forced through a tight opening. The CT1424 gives the air room to move before it enters the coil.
Improves airflow into the coil
Helps reduce static pressure
Reduces turbulence
Creates a cleaner install
Reduces static pressure by 0.1" WC
Product features
Built for Cleaner, Faster Installs
A simple adjustable transition designed to solve a common furnace-to-coil airflow restriction while improving the finished installation.
Raises the Coil
Creates space between the furnace and evaporator coil.
Cleaner Airflow Path
Helps air move more evenly into the coil.
Service Access
Makes coil cleaning and inspection easier later. Can save hundreds instantly by simplifying service access, system inspection, and cleaning.
Product specs
CT1424 Specifications
| Product | CT1424 Coil Transition |
|---|---|
| Application | Furnace-to-coil transition spacer |
| Fit Range | 14"-24" furnace widths |
| Height | 4.5" standard |
| Material | Galvanized sheet metal |
| Use | Upflow furnace installations |
Public forms
Request CT1424 Support
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Bulk ordering
Bulk Orders Available
The CT1424 is built for contractors, distributors, and supply houses that want a clean, efficient installation solution.
Added design support
Before and After CT1424
This comparison section reinforces the core product story visually and helps contractors understand the install benefit quickly.
Before
- Coil sits directly on furnace
- Tight airflow opening
- More turbulence at the base
- Harder inspection and cleaning
After
- Coil is raised above furnace
- More room for airflow transition
- Cleaner path into the coil
- Easier service access later
Designed for Contractors in the Field
The CT1424 helps solve a common installation challenge without custom fabrication. Its adjustable design gives installers a cleaner way to transition from furnace to coil while improving airflow conditions at the base of the system.
Reduces the need for field-built transitions
Helps standardize installs across multiple sizes
Supports cleaner coil alignment
FAQ
Common Questions
What does the CT1424 do?
It raises the evaporator coil above the furnace and creates a smoother transition for airflow before it enters the coil.
What furnace sizes does it fit?
It fits standard furnace widths from 14" to 24" and adapts one coil size up for rebate and airflow purposes.
What is the standard height?
The standard height is 4.5".
What material is it made from?
The CT1424 is made from galvanized sheet metal.
Who is this product for?
It is designed for HVAC contractors, installers, distributors, and supply houses.
Can I order in bulk?
Yes. Bulk orders are available for contractors, distributors, and supply houses.