XtremepowerUS A/C AC Air Conditioner System Flush Canister Gun Kit Set R134 R12 R22 R410 R404 Excellent for quickly and effectively removing refrigerant oil and debris during retrofitting or compressor replacement Flush gun is simple to use and will hold up through many flush procedures Use flush kit to remove contaminants, moisture, and acid from r12, r134a, and r22 a/c systems Reusable canister, holds 18oz. Designed for use with fjc flush solvent