HVAC Guys Flow Tabs with Gel Lock Technology - 18 Pack - Keeps Drain Pans Clean, Prevents Overflow, 3 Ton Tab Lasts up to 3 Months - 1 Tab is equal to 18 Regular Tablets (324 total) - Made in the USA

These seem to work well so far no clogs in the condensate line so far I’m not 100% sure that the brand matters just treat it right and on time and you’ll be good

Great product

They work dissolve quickly in my regular 3 ton ac unit 3 tablets in 5 weeks however in my mini split unit 3 tabs last 2 months. So expensive in a regular unit but economical in a mini split.

I recently had my central airconditioner yearly service and the technician asked if I wanted him to install a tablet that kept the drain pan clean and the drain line from clogging. I asked how much and he said $70.00. I know how important it is to keep the drain line clear to prevent water from it from clogging up and overflowing in the house. I did some shopping on Amazon and found HVAC Guys flow tabs for less than half the price and enough to keep my drain clear for several years. They are easy to install and do a great job. Great product and I highly recommend them.

I put a mini-split in my home office so I can condition just that space to the temp I prefer when I'm the only one home. I love it, but the condensate line starts getting backed up with "gunk" (super scientific term) after only a month or so and when that happens, the condensate tray holds water and the fan starts spitting it out into the room. I cut these tablets up into 4 pieces and slip 1/4 tab at a time into the condensate tray on the first of the month and that problem has stopped. It'd be cool if they made these even smaller for those of us using these for mini-splits, as they tend to crumble a bit when you cut them, but the product definitely works and it's worth the effort to keep the condensate line running clear.

These tables don't last 3 weeks, let alone the claimed 3 months... Put them in my units, and a couple weeks later, almost all gone...

I have been using these since I installed my new AC in 2024. Used as directed and they work great! I use one tab per month (broken in half) in a 2 1/2 ton unit. One box of tabs last me 18 months. Well worth the price!

thankful for advice of my AC tech to use these!

Excellent

This product outclasses by far all others I have tried on this site! The common type of white chalk-like tabs sold by other manufacturers last on average no more than a day or two and require constant checking if drip tray needs replenish. I can’t say if any of these orange gels will last a month or more as claimed (since I’ve only recently started using them) but I can confirm that a single tab ( the pack contains 16 ) split in two with one part placed upstream inside the drip pan and the other near the drain mouth of my 12 000 BTU split wall air conditioning's unit comfortably got me through a full week of severe heat wave. I expect 1 tab every two or three weeks should do a fine job while leaving your mind at peace and off spills and overflows onto your expensive floor 😩 By all calculations these cost less per usage than the gamut of poor products sold elsewhere. I highly recommend this product. As a plus they deliver a very subtle fragrance that is much unlike the awful moldy smell from AC that welcomes you when entering your home.