Enviro-Safe Proseal XL4 with Prodry XL4 Inject 1.5- 5 Ton #2102-5 Description Proseal XL4 with Prodry XL4 Inject 1.5- 5 Ton #2102-5 Proseal XL4 with Prodry XL4 Inject 1.5-5 Ton Part #: 2102-5 This product combines our Proseal XL4 and Prodry XL4 into a direct inject hose for an easy to use, one step application that seals leaks and removes moisture in your system. Forms a hard seal on metal, Schrader valves, o’rings, gaskets, a/c condensers, evaporators, line sets and solder joints 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. Enviro-Safe ProDry contains a dehydrating agent that converts system moisture into oil. (description exceeds maximum possible length)