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Pro Dry - Envirosafe - Up to 3 or 4lb System - (same as Easy Dry)

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Product Description

One (1) - Four Oz. Can of Pro Dry (same product as Easy Dry but has a different label and sells for about 20.00 to 30.00 per can plus tax retail) which is for use in up to a 3 or 4 LB system, residential, small commercial and automotive systems. Pro Dry contains a dehydrating agent that converts system moisture into oil. For use when moisture is suspected of being in the system and therefore prevents acid from forming in the system due to the moisture. Compatible with all oils and refrigerants. Compliments the systems liquid line filter drier. Run system for at least 30 minutes after installing Pro Dry.  New and made in the USA. A tap can hose is needed to install Pro Dry which is also available in our store.

Pro Dry contains a dehydrating agent that converts system moisture into a natural organic material that is compatible with and mixes with the lubricant. We recommend the use of Pro Dry XL4 whenever there is a concern that a system has moisture. It can also be used prior to Pro Seal XL4 to ensure all moisture has been removed from the air conditioning system. The 4 oz. aerosol can is sufficient to treat systems up to 3 or 4 lbs. Install Pro Dry  before installing Pro XL4 or Pro Seal Stop Leak. See installation instructions at bottom of page.

In most cases, if a system has not leaked all the way to zero, there is typically no air or moisture in the system. When charged, the system has greater pressure than the outside atmospheric pressure and moisture and air will typically not enter the system. But in situations where the system is known to have moisture in it, use Pro Seal.  Must be shipped USPS Parcel Post Ground or Fed Ex Ground. Made in the USA.


Shake can well. Make sure system is running and low side is below 65 psi. If system is above 65 psi, heat can a small amount with a heat gun/hair dryer but remember that the can is under pressure and should not be overheated.

  • Be sure piercing valve handle is turned fully counter clockwise and then attach piercing valve to can.
  • Attach other end of charging hose to low side service port. As this is done, there will be a very small release of system charge that will purge air from the hose.
  • Turn piercing valve handle fully clockwise to pierce can. Invert can and hold above low side service port.
  • While inverted, turn piercing valve handle counter clockwise to install Pro Dry. Allow approx. 1 minute for product to completely enter the system.
  • Once product is dispensed, remove hose from low side service port. Retain hose for future installations and dispose can properly.
  • Run the A/C system continuously for 20 minutes with system operating at normal temperature.
  • For systems containing excessive moisture, additional Pro Dry may be required.
  • Run A/C system for at least 20 minutes.

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