By refrigerant
By family
Buying a pallet?
Full pallets and multi-cylinder packs ship as one line on one order.
67 pallet & pack SKUs →
Sentai Gas
24LB R404A (R-404A) Refrigerant Gas | 20 Cylinders
$1,680.0020 × 24 lb cylinders
$84.00 each · $3.50 / lb
SKU 20pcs R404 · Taxes calculated at checkout
Twenty cylinders of R-404A at 24 lb each, 480 lb of low-temperature service gas, sized off an equipment list and drawn down over scheduled work.
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
Start with the arithmetic. 20 cylinders at 24 lb each is 480 lb of refrigerant, and that total is the only thing this listing tells you about volume. Work out what your own job needs: add up nameplate charges, decide which racks and freezers are getting gas and which are on the replacement list, then stage cylinders against that total. The maths is yours to do.
R-404A is an HFC blend, not a single molecule, and near-azeotropic: close enough to a pure fluid to behave like one, with a small glide that still has to be respected. Liquid charge only — draw vapour off a blend and you shift the mix. Throttle it through the manifold, meter slowly into the suction on a running system, weigh into the high side on one that is down. Read superheat off the dew point column and subcooling off the bubble point.
This gas came in as a near drop-in for the R-502 it replaced, so pressures sit close to what those machines already saw — marginally higher, not a different order. Work from the blend's own pressure-temperature chart rather than from memory. It is a high-GWP HFC, and new equipment has moved to lower-GWP alternatives, which leaves the work on the installed base. Recover whatever you pull out of a decommissioned system and send it to a reclaimer. Venting is not an option.
Key benefits
- 20 cylinders at 24 lb each — 480 lb of refrigerant in this listing
- R-404A service gas for low-temperature commercial refrigeration
- Liquid charge only — drawing vapour off a blend shifts the mix
- Near drop-in for the R-502 it replaced — pressures only marginally higher
- Near-azeotropic blend — superheat off dew point and subcooling off bubble point
| Refrigerant | R-404A |
|---|---|
| Cylinder size | 24 lb |
| Units per order | 20 |
| Total refrigerant | 480 lb |
| Brand | Sentai Gas |
| Part number (MPN) | 20pcs R404 |
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, 20 cylinders in the pack, 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 cylinder | $96.00 | $96.00 | $4.00 / lb | View |
| 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 cylindersViewing | $1,680.00 | $84.00 each lower rate | $3.50 / lb | this page |
| 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.
-
Great prices
Great service
Verified buyer · Freonwell
Reviewing 24 lb R404A Refrigerant Cylinder for Commercial Refrigeration
-
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
-
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
-
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
-
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
-
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
-
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
-
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.
