Nu-Calgon 4296-60 Pan-Treat Scum 200 Tablets

this is very good product, it remove and ease to use, with high durability is a clog removal

Cleans my ac very well it removes all the buildup and it is very easy to use and most importantly very effective. Removability it’s very good

Works as expected. Great product, great price.

Tablets for keeping heat pump drain lines clean. 1.5 ton air handler uses 3 tabs internal pan, add additional monthly. My hvac man said ri toss 2-3 in back corner of overflow pan and 2 in internal pan, add new ones monthly. If internal coil pan is hard to access you can dissolve in warm water and pour in line directly (my unit has two drain lines with blow out access points. Medium to large size tablets similar to denture soak tabs. Good price for years supply vs buying bottle if liquid and convenient to use (no spilling, no jugs of vinegar and funnels needed. Use heavier dose on first use then can use approx 1 tab per ton thereafter. I’ll do anything not have yet another leak from attic

My HVAC tech (Parobek) recommended these to keep the overflow drain clear, and they’ve been great so far. I just drop one tablet into the small overflow tube and leave it to dissolve. They fit just right. I wear gloves since the tablets are a little chalky, but they’re easy to handle and take seconds to use. They dissolve slowly and keep the line clean without any smell or mess. For the price, you get a ton of tablets - enough to last a long time - so the value’s solid. It’s one of those simple maintenance steps that saves you from bigger problems later.

Works as it says. Good stuff.

I purchased these to add to our two air handlers. They are the same tablets that our HVAC company uses yet they want to charge me $75 to add them to each unit. This I can handle myself and save the money for other items. Haven't had any backups since I have been using them. Highly recommend as long as you feel okay handling the install.

Unfortunately the how to use instructions on the bottle doesn’t say how many tablets to use each time , found instructions on Amazon , will try what it says