HFCs include popular refrigerants such as R-134a, which was introduced as a less bad alternative to CFCs such as R-12, but which has also been superseded by even less bad alternatives such as R-1234yf. This has been good for American manufacturing, as it stimulates turnover in durable goods (expensive) rather than just recharging leaking systems with additional refrigerant (cheap):

Air-conditioning and refrigeration manufacturers had supported the original restrictions, saying less harmful chemicals were available and that a shift toward those alternatives was already underway. The original rule was also seen as a win for American companies like Honeywell and Chemours that produce and sell alternatives to HFCs.

“American manufacturers did what Congress and the first Trump administration asked them to do: They invested in new equipment, new refrigerants, new production lines and American workers,” said John Hurst, the executive director of the Alliance for Responsible Atmospheric Policy, an industry group. “The administration has now changed course in a way that weakens those investments.”

So this move is a combination of environmental middle finger and drag on US GDP, hurting sales of domestic manufacturing.

Allowing Kroger to further limp along their leaking refrigerators will be somewhat meaningful to their bottom line, by delaying capital expenses that they’ve been expecting to incur (and presumably budgeting for). But it’s not going to be meaningful to retail grocery prices.

Consumers owning old vehicles with bad A/C might benefit from being able to buy more R-134a for a bit longer, but that’s not what’s motivating it, since Trump doesn’t care about the little guy.