R-410A Refrigerant 28.2 oz.

This is just what I need to top off my split AC system, which is running fine, just not quite as cold as it should be. A few seconds of additional refrigerant and it is right back to optimum. Pros want $500 just to show up with (wait for it) the same exact bottle of refrigerant. If they even deign to show up at all. A shame I can't just fill up the bottle when it goes empty. Wasteful.

Shipped fast, product was as described.

When most units take 29 or more ounces why do you sell tanks with only 28.2 oz. ?