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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

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Availability: In Stock.
Fulfilled by Amazon

Arrives Sunday, Aug 9
Order within 6 hours and 50 minutes
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Size: 18-Pack


Description

SUPERCHARGE YOUR HVAC MAINTENANCE We are a company founded and actively managed by HVAC technicians. Our goal is to bring you the best HVAC products and tools that we use ourselves in our daily jobs. We have literally tried everything! These are the products we stand behind 100%. Flow Tabs with “Gel Lock” Technology The drain pan is a dark and humid place. If left untreated, the drain line can become clogged, allow water to overflow, and cause expensive property damage. The HVAC Guys Flow Tab is an easy solution to effectively prevent clogging and buildup in air conditioner condensate drain pans. HVAC Professional’s Formula Set It And Forget It Each Flow Tab is equal to more than 18 regular hard pill tablets. The Flow Tab will dissolve completely at a consistent rate over 3 MONTHS to keep your ENTIRE pan clean and free flowing. Set it once and stop throwing in a handful of pills every single month! Special “Gel Lock” No-Clog Technology Most pan “tablets” are hard pills that can move around the drain pan. They can clog your drain pipe or be flushed out when the drain pan fills. Our Flow Tabs are made with a unique GEL LOCK technology that, when wet, locks the tab gels into place. It will not move around or clog the drain. Resize For Small Systems Or Add In Multiples For Larger Ones Each Flow Tab is made to keep a 3 Ton system drain pan clean for 3 months. If you have a smaller system, you can easily cut it to fit. If you have a larger system, you can add multiple tabs side by side. To increase the treatment time to 6 months, stack tabs on top of each other.

Package Dimensions ‏ ‎: 4.92 x 4.02 x 1.02 inches; 5.36 ounces


Item model number ‏ ‎: HG-FLOW18


Date First Available ‏ ‎: August 26, 2020


Manufacturer ‏ ‎: Leak Saver


ASIN ‏ ‎: B089Y1R8D2


Best Sellers Rank: #56,398 in Health & Household (See Top 100 in Health & Household) #129 in Chemical Drain Openers


Customer Reviews: 4.5 4.5 out of 5 stars


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 9

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • works great for a mini split!
Size: 18-Pack
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. ... show more
Reviewed in the United States on October 25, 2024 by A. Bullock

  • Good product
Size: 18-Pack
I had no idea these existed and I had no idea they were necessary. They solved my problem. The drain overflow pan in my attic HVAC had started dripping through my vent. The pipe that directed the water outside filled up with life. These tablets did a great job.
Reviewed in the United States on March 13, 2026 by kevin

  • Great product
Size: 18-Pack
Im in my 70's and I cant crawl around an attic where my air handler is like I use to. So when I'm doing my pre summer PM of my three ton central air system I stack two of these tablets in my condensate pan and Im good for the summer, one and done! No more putting half dozen tablets in every few weeks. The only con to these tablets is they dont last as long as advertised like some other reviewers have said. Thats why I stack them, but even then they are still a great value, and the two tabs last all summer. Hvac Guys make other products that are better suited in my minisplit system as well. I've tried a lot of different products by other companies but Hvac Guys products have worked the best for both of my systems. ... show more
Reviewed in the United States on October 12, 2025 by Keystone Kid

  • Works great!
Size: 18-Pack
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!
Reviewed in the United States on February 11, 2026 by John Wilson

  • hvac guys flow tab
Size: 18-Pack
These a/c tabs are the best! We always use them to ensure our air conditioner stays healthy and does not clog. We live in Florida, so our a/c works overtime all the time. These tabs are perfect for a/c health and keeps the repairs in check.
Reviewed in the United States on December 8, 2025 by jo

  • Only last a couple of weeks (not 3 months as claimed)
Size: 18-Pack
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...
Reviewed in the United States on November 5, 2025 by Brian Styles

  • Love the life span!
Size: 18-Pack
I only recently started taking care of my AC(in a condo) and I saved so much money compared to having to call a maintenance guy and spend $300 every couple of years. I love that those tablets last 3 months. I also bought their coil cleaner and my new routine is perfect. Every 3 months I change the filter, spray the coils, drop a tablet and be done! Easy and efficient! ... show more
Reviewed in the United States on September 16, 2022 by Tristan Renard

  • It de-slimed my window unit.
Size: 18-Pack
So after reading many review I decided on this product. I've been having an issue with my 1 year old ac window unit clogging. I live in Florida it is very humid and I run this unit year round unfortunately the drain to the drip pan started clogging. Luckly on window unit it is easy to access but it is hard to find metal cloth hangers these days. I did manage to MacGyver something to declog the drain. It didn't last long and I started to notice a slimy build up. After a 20 mins of Webucation and a few hours of review I got this product. At first I was cutting the in half to finagle the into the front drip pan but the desolve to easly when cut. I hope they decide to make smaller ones for windows unit. I started using whole disk in front drip pan. Take a little work to get it in the but seems fine. These things are amazing it de-slimed my unit and got rid of the musty smell comming from the unit. ... show more
Reviewed in the United States on December 22, 2022 by Shawn

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