Kit includes:
​1 can Enviro-Safe R22 Proseal XL4 #2100a
1 can Enviro-Safe R22 Prodry XL4 #2105a
1 each R12/22/502 hose with brass top tap #3345
Aerosol
Forms a hard seal on metal, schrader valves, o’rings, gaskets, a/c condensers, evaporators, line sets and solder joints
Enviro-Safe Proseal XL4 repairs minor leaks in home, heat pump, large auto, and industrial applications
One can will normally repair a leak in systems up from 1.5 to 5 ton. If you have a smaller unit, please contact us.
If the a/c system that will not hold a vacuum, you need to use the Enviro-Safe Prodry XL4.
The reason for the vacuum or the use of Enviro-Safe Prodry XL4 is that it will eliminate moisture in the system. Moisture mixing with oils and refrigerant can cause you system to make sulfuric acid which will corrode and eat your system!
For larger units over 5 tons, we suggest you use the Enviro-Safe Proseal XL4 Direct Inject. These are available in various of the larger sizes.
Even though Proseal XL4 can form a seal on the Schrader valve, when you hook up to it the seal will release and allow you to use the Schrader if necessary. If there is still Proseal XL4 in the system it will reseal the Schrader.
Can be used as a system-protector against system failure.
Protects against leaks formed by corrosion.
Enviro-Safe ProDry contains a dehydrating agent that converts system moisture into oil. We recommend the use of ProDry XL4 before the use of Enviro-Safe ProSeal XL4 to ensure all moisture has been removed from the air conditioning system.
Should be used on any home A/C system that has leaked below 15 psi (running or not running) or if the system has ever leaked below 15 psi in the past.  If you do not wish to use Pro Dry XL4, the system must be vacuumed prior to installing ProSeal XL4.
When put into an A/C system that has moisture or air, Pro Dry XL4 mixes with the moisture and air in system forming a synthetic oil which then mixes with the oil in the system.
DO NOT use in ammonia systems
DO NOT use in CO2 systems
DO NOT use in R410a systems- Pressure is too high and will explode the can- You MUST use the Enviro-Safe Proseal XL4 Direct Inject line of products.
Cannot be sent to Alaska or Hawaii or exported to foreign countries except in pallet quantities
Gas propelled
Installs the same way as refrigerant
Cannot be added to a fully charged system