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Sentai Gas
24LB R404A (R-404A) Refrigerant Gas
$96.0024 lb cylinder
$4.00 / lb
SKU PZ-404 · Taxes calculated at checkout
One 24 lb cylinder of R-404A for the job in front of you — a liquid-charged blend for walk-in freezers, display cases and rack systems still running it.
Buy in bulk and save
The more cylinders, the bigger the discount.
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Buy 5+, get 5% offSave $24.00 on 5
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Buy 10+, get 7% offSave $67.20 on 10
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Buy 15+, get 10% offSave $144.00 on 15
Shipping & Support
Everything you need before ordering
- Shipping rate
- Free on every order
- Dispatch
- 1 business day (Mon–Fri)
- Estimated delivery
- 1–4 business days
- Shipping origin
- United States
90-day returnsUnopened, factory-sealed items. No restocking fee. Returns need approval first.
After-sales supportLive chat around the clock · phone Mon–Fri, 9:00 AM – 6:00 PM ET · +1 (509) 938-2763
Accepted payments
Secure checkout powered by Stripe
One cylinder, 24 lb, for the job on the board today. Freezer down, leak traced and repaired, system into vacuum, charge weighed in, truck loaded and gone. Fit a fresh drier while you are in there. Polyolester is common across this installed base and pulls moisture straight out of the air, though mineral-oil and alkylbenzene retrofits are still out there — check what the machine holds before you commit to a charge.
Zeotropic blend — R-125, R-143a and R-134a — so liquid and vapour in the cylinder are not the same mix. Charge liquid. Throttle into the suction side of a running machine, or weigh into the high side with the system off. Invert the cylinder if it will not draw liquid upright. Glide puts the dew point and the bubble point apart at one pressure: superheat off the dew point column, subcooling off the bubble point. Repair a leak and weigh in a fresh charge rather than topping up. Gauges and hoses want a high-pressure HFC rating.
This gas arrived as the service replacement for R-502 and took over the low-temp work as R-22 wound down. New kit specifies blends such as R-448A and R-449A now, but the installed base still wants charge gas. Ordering 1 cylinder keeps it simple: enough for the repair in hand, nothing restricted left sitting on a shelf, and no part-used cylinder rattling round the van for months.
Key benefits
- 24 lb cylinder — 1 cylinder in this listing
- Zeotropic blend — charge liquid and never draw vapour off it
- Superheat off the dew point column — subcooling off the bubble point
- Weigh in a fresh charge after a repair instead of topping up
- For low- and medium-temperature commercial refrigeration and refrigerated transport
| Refrigerant | R-404A |
|---|---|
| Cylinder size | 24 lb |
| Brand | Sentai Gas |
| Part number (MPN) | PZ-404 |
Shipping
Free shipping on every order to United States. Dispatched in 1 business day (Mon–Fri); delivery 1–3 business days (Mon–Fri) after dispatch.
Shipping policyReturns
90-day returns on unopened, factory-sealed cylinders, cans, water heaters, boilers, heaters and accessories. No restocking fee; refunds within 7 business days of inspection.
Returns policyUse R-404A only in equipment designed and labelled for it — confirm the refrigerant on the equipment nameplate before charging. Never mix refrigerants.
Pressurised cylinder: store upright, away from heat, and below the temperature marked on the label.
This refrigerant is sold to EPA Section 608 certified technicians and to buyers purchasing for resale to them. Compliance policy
FAQ
How much refrigerant is in this listing?
24 lb of R-404A per cylinder, as stated in the product title.
What does shipping cost and how long does it take?
Shipping is free on every order to United States. Orders are dispatched in 1 business day (Mon–Fri) and arrive 1–3 business days (Mon–Fri) after dispatch.
Can I return it?
Yes — within 90 days for unopened, factory-sealed cylinders, cans, water heaters, boilers, heaters and accessories, with no restocking fee. We cannot accept cylinders whose seal has been broken, partially used refrigerant, any cylinder that has been connected to a system, and any water heater, boiler or heater that has been installed or connected to gas, water or power.
Do I need to be certified to buy this refrigerant?
Federal rules (EPA Section 608) restrict the sale of this refrigerant to certified technicians and to buyers purchasing for resale to them. By ordering you confirm you are permitted to buy it.
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 | Link |
|---|---|---|---|---|
| 1 cylinderViewing | $96.00 | $96.00 | $4.00 / lb | this page |
| 5 cylinders | $460.00 | $92.00 each lower rate | $3.83 / lb | View |
| 10 cylinders | $880.00 | $88.00 each lower rate | $3.67 / lb | View |
| 20 cylinders | $1,680.00 | $84.00 each lower rate | $3.50 / lb | View |
| 30 cylinders | $2,400.00 | $80.00 each lower rate | $3.33 / lb | View |
| 40 cylinders | $3,040.00 | $76.00 each lower rate | $3.17 / 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.
More R-404A
40 pack
R-404A · 24 lb · ×40 · EPA 608
Full Pallet – 40 × 24lb R-404A Refrigerant, Free Freight
Regular price $4,478.40$4.67 / lb
$111.96 each
In stock
R-404A · 24 lb · EPA 608
24lb R-404A Refrigerant, Reclaimed, California Compliant – Made in USA
Regular price $100.00$4.17 / lb
In stock
What people say about buying from us
Excellent
These cover the buying experience across our catalogue, not this product alone.
4.9 out of 5, based on 8 reviews
7 from Sentai Gas customers and 1 from customers of Freonwell, our partner store, who bought the same cylinder.
- 5-star88%
- 4-star13%
- 3-star0%
- 2-star0%
- 1-star0%
Reviews are submitted by customers after a completed order and published as written. We do not edit or delete a review for being critical.
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Great prices
Great service
Verified buyer · Freonwell
Reviewing 24 lb R404A Refrigerant Cylinder for Commercial Refrigeration
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Fast shipping and exactly what I ordered
I ordered R-410A for an HVAC job and everything went smoothly. The cylinder arrived well packaged and sooner than I expected. The ordering process was straightforward and the product was exactly what I needed.
· Texas
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Great option for HVAC supplies
I needed R-134a quickly and found the pricing very competitive. The product information was clear, checkout was easy, and the cylinder arrived in good condition. Overall, a very smooth experience.
· Florida
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Good prices and a simple ordering process
Sentai Gas made it easy to find the refrigerant I needed. The order went through without any issues and delivery was right on schedule. I'll definitely keep them in mind for future orders.
· Arizona
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Very satisfied with the service
This was my first order and the experience was better than expected. The website was easy to navigate, the product was available, and everything arrived as described.
· Georgia
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Reliable supplier
I was looking for a straightforward place to order refrigerant and found Sentai Gas. The ordering process was simple and my cylinder arrived safely and in good condition.
· Ohio
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Good selection and quick dispatch
I found the specific refrigerant I needed without having to search through several suppliers. The order was dispatched quickly and arrived without any damage. Very happy with the purchase.
· California
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Exactly what I needed
The product matched the description and arrived in good condition. The whole purchase was straightforward from checkout to delivery. I'll be ordering again when I need more refrigerant.
· North Carolina
Reviews are published as written. If something went wrong with your order, email contact@sentaigas.com and we will put it right — see our returns policy.
