
Chemours
25lb R-438A (Mo99) Refrigerant, R-22 Replacement
$13.16 / lb
SKU 440 · Taxes calculated at checkout
A 25 lb cylinder of R-438A, sold as MO99, an R-22 replacement formulated to work with the oil already in the system.
In stock, ready to ship
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Questions before you order? Call +1 (509) 938-2763
- Free shipping — United States
- 90-day returns on unopened, factory-sealed cylinders, cans and accessories
- 30-day defect & leak replacement
Processing & shipping
Orders leave the warehouse in 1 business day (Mon–Fri), and transit is 1–3 business days (Mon–Fri) once the carrier has the cylinder.
Shipping is free on every order, to United States only — we do not ship internationally. One delivery address per order; place a second order for a second site.
In stock: R-1234yf, R-134a, R-22, R-404A, R-410A, R-449A, R-32, R-407A and R-407C — ready to ship.
Safe & secure checkout
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Payment is processed by Stripe. Card details are entered on Stripe’s own checkout and never reach this site. The methods offered are confirmed at checkout.
- Delivery
- Ships in 1 business day (Mon–Fri), arrives in 1–3 business days (Mon–Fri). Free on every order, no minimum. United States only — cylinders cannot go to a PO box or a parcel locker.
- Returns
- 90 days from delivery on unopened, factory-sealed cylinders, cans and accessories. No restocking fee. Refunds within 7 business days of inspection. Opened or partially used refrigerant cannot be returned.
- Warranty
- 30-day defect & leak replacement — a leaking or damaged valve, a cylinder that will not hold pressure, or the wrong refrigerant or fill weight. Inspect within 72 hours of delivery.
Product details
R-438A — widely known by its MO99 trade name — is a blend built for retrofitting R-22 equipment with as little disruption as possible. Like the other mineral-oil-compatible replacements, its selling point is what you do not have to do: no compressor oil change, no flush, no component swap in the ordinary case.
It is a multi-component blend, which has consequences in service. Charge liquid, use the R-438A pressure–temperature chart rather than R-22's, and check the superheat after the changeover. A 25 lb cylinder is the standard service size for this work.
Highlights
- 25 lb cylinder
- R-22 retrofit blend
- Works with existing mineral oil
- Blend with glide — use R-438A PT data
- Liquid charge only
At a glance
| Refrigerant | R-438A |
|---|---|
| Cylinder size | 25 lb |
| Shipping weight | 36.0 lb |
| Brand | Chemours |
| Part number (MPN) | 440 |
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