Coupon ???? ZeroR® R1234YF_ Oil Charge Compressor Booster – 1 Cans ????

A blend of selected oils that have been formulated to provide the extra oil needed when an air conditioning unit loses the oil charge due to leaks or malfunctions in the system. Compatible with R1234YF_ additives and systems

• IMPORTANT: These cans are R134 can tap threaded (left hand thread) A R1234YF can tap will not work on this can and we suggest using ZeroR R134a Can to R1234YF Port Can Tap with Gauge
• Oil charge is perfect for the single use and may be used in R1234YF_ Systems
• Must be used in non-backflow device hose (should be able to blow through each end of hose)
• Returns: This item is considered a HazMat Material and as such is not returnable. It requires hazmat certification to ship. Amazon does not supply a Return label and the seller will not supply return labels for this type of products. Please contact seller for any help you might need in using the product.