Description
R-454B22 lb Cylinder
The A2L replacement for R-410A in new residential and light-commercial equipment built for it.
Supplied new and unused in a non-refillable steel service cylinder with the manufacturer valve seal intact, packed to 49 CFR hazardous-materials standards and processed within 1 business day after order review.
Technical specification
| Refrigerant designation | R-454B |
|---|---|
| Chemical family | HFO / HFC blend |
| Composition | R-32 / R-1234yf |
| Nominal blend ratio | 68.9 / 31.1 % by weight |
| ASHRAE 34 safety class | A2L — lower toxicity, mildly flammable |
| Global warming potential | 466 (AR4, 100-year) |
| Ozone depletion potential | 0 |
| Temperature glide | ≈ 0.2 °F — near-azeotropic |
| Boiling point at 1 atm | −59.8 °F / −51.0 °C |
| Compatible lubricant | POE (polyol ester) |
| Net weight | 22 lb / 10 kg |
| Cylinder type | Non-refillable steel service cylinder |
| Cylinder dimensions | 16.5 in high × 9.8 in diameter |
| SKU | RM-454B-22 |
Compatible applications
Residential split systems
Condensers and air handlers nameplated for R-454B.
Heat pumps
Reversible cooling and heating equipment approved for A2L charge.
Light commercial
Packaged rooftop units and small DX systems listed for R-454B.
Before you order
R-454B is the primary R-410A successor adopted across the US market under the AIM Act HFC phasedown. It is not a retrofit for existing R-410A equipment.
A2L service requires flammable-rated recovery machines, gauges and leak detection, plus ventilation and ignition-source control at the work area.
Safe handling
- Verify the equipment nameplate specifies R-454B and note the approved charge before connecting.
- This system requires POE (polyol ester). Mixing incompatible lubricants causes compressor failure.
- Charge in the liquid phase only — vapour charging shifts the composition of a blend.
- A2L classified: use flammable-rated recovery, gauges, vacuum pump and leak detection, with ventilation and ignition-source control.
- Store upright and secured, in a cool, dry, ventilated area away from heat, sparks and open flame.
- Recover refrigerant — knowingly venting is a violation of Clean Air Act Section 608.
Shipping
Service cylinder. A2L — mildly flammable. Use only in equipment nameplated for R-454B, with A2L-rated service tools. Follow the cylinder label, safety data sheet and equipment manufacturer instructions.
