1 - Case (total of 12 cans) - Pro Seal XL4 (Same as Easy Seal, just has different label) - 1.5 to 5 Ton Systems - AC Stop Leak - Sealant formula developed by NASA for critical systems such as space flights, submarines, ect. Sealant Can - Compatible will all oils (Mineral, POE, Pag, ect.) and most refrigerants but not recommended for 410A (use Pro Seal XL4 Direct Inject). Will seal most small leaks in Air conditioning systems. Made in the USA by Envirosafe. Recommended to put in two cans in older systems that are suspected to have large leaks with good results (95 to 99% success rate). Tap can, purge hose, add to running system on the low side or purge hose by slightly loosening can from tap can fitting, then tap can, run system for 1 hour. If low side pressure is higher than 65 psi, you can heat the can with a heat gun/hair dryer/hot water and sealant will flow into the system at the higher pressure. Caution: Do not overheat due to can being under pressure.   Works out to 14.58 per can with a savings of 5.00 per case vs. purchasing individually.

It is recommended to use Pro Dry XL4 if moisture is suspected in the system before using Pro Seal XL4.

Same identical product and manufacturer as Easy Seal but has different label. Easy Seal sells for about 50.00 to 55.00 + tax retail.