Proseal XL4 Inject 8 Pack R1234yf, R22a, R12a, 410a

Proseal XL4 Inject is designed for air conditioning systems up to 5 tons in capacity. This product is compatible with R1234yf, R22a, R12a, and 410a refrigerants, but should not be used in ammonia systems. Proseal XL4 Inject performs best in heat pumps, split and mini-split units, packaged units, microchannel coils, coolers, and commercial units. The concentrated formula forms a hard seal on metal, schrader valves, o'rings, gaskets, air conditioning condensers, evaporators, line sets, and solder joints. Even though Proseal XL4 can form a seal on the schrader valve, the seal will release when you hook up to it, allowing you to use the schrader if necessary. The concentrated formula means less material is needed in the system, making it a more efficient solution. Proseal XL4 Inject is a one-time use product, and no injection-hose or caulk-gun is needed. There is no need to pump-down R410 or other units when using this product.