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

Pretty effective but this things go by in the first few days they are done but for sure clean the pipe

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

Just drop one tablet in your AC's condensate drain trap to prevent it from clogging with algae. Easy to use and effective.

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

Works as expected. Great product, great price.

Keep the condenser fluid clean.

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

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