Mastercool (MAS98370) R12-to-R134a A/C Manifold Conversion Kit Review

Poor quality. High side fitting leaks. Box says "Economy Couplers".
Packaging is poor. Fittings shipped loose in a small box. Free to rattle around.Thousands of little nicks and scratches.Looks like an old, mistreated, worn out tool. A few threads are smashed. I shouldn't have even tried to use it.I don't think the damage all happened due to poor packaging because the fittings look bab even on the inside!

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Product Description:

Includes Hi-side and Low-side manual couplers and tank hose adapter.

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Mastercool 91046-A Air Conditioner System Flush Kit Review

Awesome piece of equipment! Can be used to flush out just about anythink, not just A/C systems.

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Product Description:
Mastercool Air Conditioner System Flush Kit is designed for excellent, quick as well as effective removal of refrigerant oil and debris during retrofitting or compressor replacement. It includes flush gun, hose, canister and canister adapter. The flush gun is simple to use plus holds up through many flush procedures and is backed by a 1 year warranty on material as well as workmanship.

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