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.

Product video preview

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

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.

With CT1424

The raised coil gives air room to transition smoothly before entering the coil.

Furnace and coil installed with CT1424
One coil size upHow CT1424 Bridges the Size Difference
Straight UpNo taper · both edges vertical
Aligned CoilCT142414" Furnace
One-Sided TaperLeft side opens · Right edge stays flat
17" CoilFLAT SIDECT142414" Furnace

Active size: 14" Furnace → 17" Coil. The straight-up panel keeps both transition sides vertical. The one-sided taper opens only to the left, while the right side remains flat, vertical, and aligned throughout the continuous animation.

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.

Adjustable Fit

Fits 14"–24" furnace widths.

14"17"17"21"21"24"

Raises the Coil

Creates space between the furnace and evaporator coil.

Cleaner Airflow Path

Helps air move more evenly into the coil.

Service Access

The removable front panel opens the CT1424 for easier cleaning and inspection access.

Product specs

CT1424 Specifications

ProductCT1424 Coil Transition
ApplicationFurnace-to-coil transition spacer
Fit Range14"–24" furnace widths
Height4.5" standard
MaterialGalvanized sheet metal
UseUpflow furnace installations

How to order

Order CT1424 Coil Transitions

Select quantity and submit your order request. We’ll confirm pricing, availability, and delivery details.

Choose request type3 options

Bulk ordering

Bulk Orders Available

The CT1424 is built for contractors, distributors, and supply houses that want a clean, efficient installation solution.

Request Bulk Pricing

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 heights are available?

The standard height is 4.5", and a 6" version is also available.

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.