Out of stock. Contact us for lead time on this item.

Sentai Gas
25LB R448A (R-448A) Refrigerant Gas
$15.20 / lb
SKU PZ-R448 · Taxes calculated at checkout
One 25 lb cylinder of R-448A: enough gas to weigh in a fresh charge on a medium- or low-temperature case or walk-in once the leak is repaired.
Out of stock — contact us for lead time
Secure checkout with Stripe — card details never reach this site
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
A display case drops its charge overnight. You find the leak, braze it, pull a vacuum, and then the system wants a weighed charge rather than a top-up guess. This is the quantity for that sort of call: 25 lb of R-448A in one cylinder, which covers a case or a walk-in without splitting a charge across calls. It is a repair quantity, not a rack rebuild.
The blend went into supermarket racks, convenience-store cases, reach-ins, walk-in coolers and freezers, taking over from R-404A and R-507 at both low and medium temperature. Treat it as service and retrofit gas for that equipment: zeotropic, an HFC/HFO mix, A1 on the safety list, and compatible with the POE oil those systems already run. Nothing exotic to learn, but it does not behave like a single-component refrigerant.
Charge it as liquid. Glide is appreciable, so vapour drawn off the top changes the composition of what reaches the system — check the valve in front of you, get liquid out, then throttle into the low side. Dew point for superheat, bubble point for subcooling. After a leak, recover and weigh in fresh rather than topping up. Pressures sit in the R-404A class, considerably above R-22, so confirm hoses, gauges and recovery gear are rated for it. Mark any partial and note the system it came off.
Highlights
- 25 lb of R-448A in one cylinder
- Zeotropic HFC/HFO blend with A1 safety classification
- Service and retrofit gas for R-404A and R-507 equipment
- Liquid charge only — vapour off the top shifts the composition
- Runs on POE oil at considerably higher pressure than R-22
At a glance
| Refrigerant | R-448A |
|---|---|
| Cylinder size | 25 lb |
| Brand | Sentai Gas |
| Part number (MPN) | PZ-R448 |
Buying more than one
This cylinder is stocked in 6 pack sizes. Each is its own listing — the price per cylinder is shown so you can see where the break actually falls.
| Pack | Total | Per cylinder | Per lb | |
|---|---|---|---|---|
| 1 cylinderViewing | $380.00 | $380.00 | $15.20 / lb | this page |
| 5 cylinders | $1,875.00 | $375.00 each lower rate | $15.00 / lb | View |
| 10 cylinders | $3,700.00 | $370.00 each lower rate | $14.80 / lb | View |
| 20 cylinders | $7,200.00 | $360.00 each lower rate | $14.40 / lb | View |
| 30 cylinders | $10,500.00 | $350.00 each lower rate | $14.00 / lb | View |
| 40 cylinders | $12,800.00 | $320.00 each lower rate | $12.80 / lb | View |
Multi-cylinder packs move as palletised freight and need a delivery appointment and a way to unload. Confirm you have both before ordering at these quantities.
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