Skip to content
Refrigerant Type MO99

R-438a (Mo99) 25 Lbs (R-22 Replacement)

$350.00 - $350.00
$350.00
$375.00
$375.00 - $375.00
$375.00

Available in stock ship's within 1 business day.

Availability:
In stock

I hereby certify that the cylinders of refrigerant that I am purchasing are being purchased solely for the purpose of reselling to or will be installed by an EPA certified technician. I certify that I will comply with all applicable Local, State and Federal regulations and laws and that I am legally permitted to purchase, accept delivery of, possess and resell these cylinders of refrigerant.

Request a Quote

Single and Bulk available

  • Residential and commercial air conditioning systems (rooftop and indoor packages units, direct expansion chillers, split systems)
  • Low- and medium-temperature refrigeration systems (self-contained and rack systems, condensing units)
    • Refrigerant Type: MO99 (R-438)
    • Net Weight: 25 Lbs.
    • Refrigerant Compatibility: R-22

Customer Reviews

Based on 7 reviews
100%
(7)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
j
john h zertuche canadian air

I've been using it for years and haven't had any problems...

J
Jacob Kadinger
Fast delivery

Good price and fast delivery

S
Sujel Amin

R-438a (Mo99) 25 Lbs (R-22 Replacement)

N
Nathan Chrisensen

Amazing!

K
Kristopher Cluff
MO-99 Pros and Cons

MO-99 is a suitable alternative to R-22. I’ve found that the older condenser coils (from the 70’s, 80’s, and most of the 90’s) can’t dissipate heat well. This is due to the reduced surface area of aluminum fins and larger pipes. This poses a bit of a challenge where MO-99 has a higher discharge charge temperature. The higher discharge temperature doesn’t allow for the same volume of refrigerant to be filled in the condenser. The temperature of condensed refrigerant leaving the condenser is still pretty hot compared to ambient temperature.
On the other hand, larger condenser coils with smaller pipes and large surface area of aluminum fins, dissipate heat better and in these applications MO-99 is suitably matched. MO-99 works well on any compressor filled with mineral oil that originally was fitted for R-22 use.
As a side note:
I prefer R-407c as an alternative to R-22 on any compressor that is filled with POE oil, and is fitted for original R-22 use.

12

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare