R-32 factory-sealed refrigerant cylinder from OnTap Cold, labeled at 20 lbs with a manufacturer-stated net weight of 10kg (22 lb) per bottle. This is an A2L mildly flammable refrigerant — EPA Section 608 certification is required before purchase.
Note: If you would like to review the manufacturer Product Specifications, Warranty, Brochure, etc., for this system, please refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
R-32 (Difluoromethane) is a lower-GWP refrigerant used in split air conditioners, VRF systems, heat pumps, small cold storage, food and beverage refrigeration, and EV/hybrid vehicle air conditioning. It's positioned as an alternative to R-410A, with a GWP of 675 versus higher legacy figures, and it carries zero ozone depletion potential. This cylinder from OnTap Cold ships factory sealed and is labeled at 20 lbs, though the manufacturer's own packaging spec lists net weight as 10kg/bottle (22 lb) — [NEEDS VERIFICATION] on the actual net fill weight for this specific SKU.
What's in the Box
- One factory-sealed R-32 refrigerant cylinder (SKU R32US20lb)
- No hoses, gauges, recovery equipment, or fittings included
Professional Requirements & Limitations
- EPA Section 608 certification is required by federal law to purchase and handle this refrigerant.
- R-32 is classified ASHRAE A2L: lower toxicity, mildly flammable. It is NOT a non-flammable A1 refrigerant like R-410A, and it must not be handled with open flame, non-rated electrical equipment, or non-spark-proof recovery machines nearby.
- Confirm that vacuum pumps, recovery machines, and leak detectors used with this cylinder are explicitly rated for A2L refrigerants. Standard R-410A-only equipment is NOT automatically safe for R-32 service.
- Do not mix R-32 with R-410A or other refrigerant blends in the same system or recovery cylinder.
Pro-Installer Tip
Pulling a vacuum on an R-32 system carries the same non-negotiable requirement as any A2L job: get below 500 microns and hold it. Residual moisture and air (non-condensables) left in the line set will raise head pressure, promote acid formation with POE oils, and shorten compressor life — on an A2L system, trapped air also skews your charge calculations, which matters more given R-32's higher operating pressures. Pull vacuum with a micron gauge, not just the manifold's compound gauge, and use a valve core removal tool so you're evacuating through full-port access rather than restrictive Schrader valves. This is standard EPA Section 608 practice, and it's not optional on A2L equipment — deep vacuum verification is your evidence the system is dry and non-condensable-free before charging.
Key Benefits
- Lower GWP (675) than legacy R-410A, reducing the greenhouse impact of a service charge or system fill.
- Zero ozone depletion potential (ODP 0).
- Factory-sealed cylinder for verified fill integrity.
- Suited to residential, commercial, and light industrial refrigeration and A/C applications.
Technical Specifications
| Attribute | Value |
|---|---|
| Refrigerant Type | R-32 (Difluoromethane) |
| Chemical Formula | CH2F2 |
| Molecular Weight | 52.02 g/mol |
| GWP | 675 |
| ODP | 0 |
| ASHRAE Safety Class | A2L (Low toxicity, slightly flammable) |
| Net Weight (per manufacturer packaging spec) | 10kg/bottle (22 lb) |
| Boiling Point (1atm) | -51.7°C |
| Critical Temperature | 78.1°C |
| Critical Pressure | 5.78 MPa |
| Critical Density | 0.424 g/cm³ |
| Liquid Density (25°C) | 961 kg/m³ |
| Gas Density (0°C, 1atm) | 2.7 kg/m³ |
| Specific Heat Capacity (liquid, 25°C) | 1.79 kJ/(kg·K) |
| Specific Heat Capacity (gas, 25°C, 1atm) | 0.846 kJ/(kg·K) |
| Specific Latent Heat of Evaporation (boiling point) | 390 kJ/kg |
| Thermal Conductivity (gas, 25°C) | 0.107 W/(m·K) |
| Dynamic Viscosity (gas, 25°C) | 12.72 μPa·s |
| Vapor Pressure (25°C) | 1.67 MPa |
Note: See "Resources (System Manuals and Warranty)" Tab above for full specifications.
Options & SKUs
| Variant | SKU | Price |
|---|---|---|
| Standard | R32US20lb | $289.00 |
Compatibility & Fitment
Compatible for use in systems designed for R-32 refrigerant, including residential and commercial split A/C, VRF systems, heat pumps, small cold storage, and beverage/food refrigeration equipment engineered for R-32 charge. NOT compatible with systems designed exclusively for R-410A or R-22 without OEM confirmation of R-32 approval — do not retrofit charge a non-R-32-rated system. Hoses, manifold gauges, recovery equipment, and fittings are NOT included with this cylinder. Verify your recovery machine, vacuum pump, and leak detector are A2L-rated before servicing.
FAQ
Is EPA certification required to buy this?
Yes. EPA Section 608 certification is required by federal law to purchase and handle this refrigerant.
Is this refrigerant flammable?
R-32 is classified ASHRAE A2L: lower toxicity, mildly flammable. Handle with A2L-rated equipment only.
What is the GWP of R-32?
675, with an ODP of 0.
Does this include hoses or a recovery machine?
No. This listing is the refrigerant cylinder only. Hoses, gauges, and recovery equipment are not included.
What is the net weight of the cylinder?
Manufacturer packaging specification lists 10kg/bottle (22 lb) net weight; the product is also labeled and titled as 20 lbs, so confirm actual fill weight with the "Resources" tab or before ordering.
Compliance & Warranty
This cylinder is factory sealed and sold as new. EPA Section 608 certification is required for purchase and use, per federal law. R-32 is an ASHRAE A2L refrigerant — mildly flammable, lower toxicity — and must be handled, recovered, and serviced only with A2L-rated tools and equipment. For manufacturer warranty terms, safety data sheets, and full specifications, refer to the "Resources (System Manuals and Warranty)" Tab above on this page.
