Sunbelt Labs Aqua Fresh Deodorizer for Rainbow Vacuum Cleaners – Odor Eliminator & Air Freshener – Compatible with D2, D3, D4 Models – 32oz Concentrated Formula

Worked excellent in my Rainbow vacuum! Smells amazing!

Fast delivery, item was packaged securely, item is exactly as advertised.Pleased with my purchase.Rate seller A++++

I used this deodorizer immediately when it was delivered. I really like the fresh scent.

I ordered this thinking it would have my house smelling fresh in my rainbow. It does not smell at all. Puts off no scent. Total waste of money.

Unfortunately it's not the same as the Rainbow scent. More foamy than air deodorizer

Absolutely not a replacement for rainbow’s brand. The smell is off

I put this in my rainbow vacuum water. It has such a fresh smell.

I got this as a more affordable alternative to the brand name aroma for our cleaner, and the scent is what I expected. However, in order to actually notice it, you do need the 2 cap fulls as instructions indicate, but using that much on even speed level 2 of 4 made the tank so foamy/sudsy that I basically had to stop it within 10 minutes, dump what liquid was left out and start fresh. I tried 1 cap full, and again in level 2, it began to foam up. I dropped the unit to the lowest level and it was fine but barely noticeable scent at that point. After several hours in low I was able to bump it up to the next level and it didn't foam as much so maybe that's the key, but I have yet to be able to figure out how to use 2 cap fulls in our unit.