Buy R-448A Refrigerant Online
Genuine R-448A in cylinder and bulk quantities a lower-GWP replacement for R-404A in supermarket and commercial refrigeration, also sold under Honeywell's Solstice N40 trade name. EPA Section 608 compliant, ships nationwide. Hero CTAs: Shop R-448A Cylinders · Get Wholesale Pricing
A1
1,387
0
-51°F
24 lb
PT Chart Preview (partial)
A quick-reference preview use the full calculator for any pressure or temperature, not just the values below.
| Temperature (°F) | Pressure (psig) |
|---|---|
| -20 | 18.5 |
| 0 | 37.9 |
| 20 | 68.0 |
| 40 | 111.5 |
| 60 | 172.0 |
| 80 | 253.5 |
| 100 | 360.0 |
Need a value not listed here? Open the full R-448A PT calculator →
Where R-448A Is Used
Supermarket Refrigeration Cases
A leading lower-GWP replacement for R-404A across medium- and low-temp display cases.
Walk-In Coolers & Cold Storage
Increasingly specified for new walk-in and cold storage installations.
R-404A Retrofit Projects
Designed to retrofit into many existing R-404A systems with limited component changes.
Shop R-448A Cylinders
R-448A 25lb Honeywell Refrigerant – Made in USA
In stock
Original price was: $349.00.$299.00Current price is: $299.00.- Refrigerant: R-448A (N-40), Low-GWP R-404A/R-22 replacement
- Brand: Honeywell, Genuine, Made in USA
- Weight: 25 lbs per cylinder
- Grade: Virgin, factory sealed
- GWP: Low GWP, significantly better than R-404A
- Certification: DOT approved, EPA compliant
- Application: Commercial refrigeration, low & medium temperature
- Best For: Supermarkets, cold storage, food service refrigeration
R-448A vs. R-404A: Which One Do You Need?
Both run in overlapping equipment categories here's how they actually differ.
| Feature | R-448A | R-404A (the refrigerant it replaces) |
|---|---|---|
| GWP (100-yr) | 1,387 | 3,922 |
| ASHRAE Class | A1 (non-flammable) | A1 (non-flammable) |
| Typical Use | New & retrofit supermarket/commercial refrigeration | Existing supermarket & transport refrigeration |
| Efficiency | 5–10% more efficient than R-404A | Baseline |
| Composition | 5-component HFC/HFO blend (zeotropic, with glide) | HFC blend (near-azeotropic) |
Not sure which one your system uses? Check the dataplate on your outdoor unit, or see our HVAC brand compatibility guides →
EPA Section 608 Notice
R-448A purchases require valid EPA Section 608 technician certification on file before checkout. R-448A is classified ASHRAE A1 (non-flammable, lower toxicity), so it does not require A2L-rated recovery or storage equipment. As a zeotropic blend with temperature glide, always charge in liquid form to avoid fractionation.
Related Guides
R-448A vs. R-404A: What Changes During a Retrofit
Component and oil compatibility considerations.
- Read Guide →
Understanding Temperature Glide on Zeotropic Blends
Why bubble and dew points matter for charging.
- Read Guide →
R-404A Phase-Down: What Commercial Operators Need to Know
Timeline and pricing outlook driving the shift to R-448A.
- Read Guide →
What Every Technician Should Know About R-448A
A non-flammable, lower-GWP path off R-404A that's become one of the most common choices for supermarket refrigeration retrofits.
Why R-448A Stays Non-Flammable While Other Replacements Don't
Many newer low-GWP refrigerants replacing older HFC blends carry an A2L mildly-flammable classification, but R-448A's five-component HFC/HFO blend was engineered to keep the A1 non-flammable rating R-404A had, a deliberate choice that avoids the A2L equipment investment for operators not ready to make that transition.
Handling Temperature Glide During Charging
As a zeotropic blend, R-448A exhibits temperature glide during phase change, meaning its liquid (bubble point) and vapor (dew point) saturation temperatures differ at a given pressure. Using the bubble point for liquid-line subcooling checks and the dew point for suction-line superheat checks is essential for an accurate charge, using the wrong reference point leads to a mischarged system.
Retrofitting Existing R-404A Systems
R-448A is commonly used to retrofit existing R-404A supermarket and commercial refrigeration systems, though a proper retrofit still requires confirming compressor oil compatibility, expansion valve calibration, and system-specific charge adjustment rather than a straight drop-in swap.
Frequently Asked Questions
Yes. Solstice N40 is Honeywell's trade name for R-448A.
It's designed for retrofit use, but proper conversion still requires checking oil compatibility, expansion valve calibration, and charge adjustment — not a simple swap without verification.
No. R-448A is ASHRAE-classified A1, non-flammable and lower toxicity, unlike A2L refrigerants such as R-32 or R-454B.
As a zeotropic blend, R-448A has temperature glide liquid and vapor saturation temperatures differ at a given pressure, so using the correct reference point matters for accurate charging.
Yes. Federal EPA Section 608 rules require valid technician certification on file before purchase.
Smart Refrigerants stocks 10 lb and 24 lb cylinders, plus bulk supply for distributors.
Need R-448A for a Commercial Job Today?
In-stock cylinders ship same day, with wholesale pricing for distributors and contractors.