Formula 409 All Purpose Cleaner Refill, 180 Ounce

408 previous formulae attempts (according to Trivial Pursuit) did not clean as well as the Original Formula 409. In addition to the 180 oz, this order also came with a (full) 32oz spray bottle (was not indicated when I ordered). I was very interested in getting this version (the bottle says "Multi-Surface Cleaner"), which has the ammonium. There is nothing better (that I am aware of) to clean white dry-erase boards. I have had the same board for 20 years now, and it still looks great. A great tip (was on the instructions I believe), was to "pre-condition" the board by wiping it with ammonia before using. Later I discovered that 409 was a super white-board cleaner, and later still I noticed that 409 has Methyl Benzyl Ammonium Chloride as its active ingredient. I would hazard a supposition that the ammonia/ammonium not just cleans, but helps protect the surface. Of course 409 cleans a lot of other stuff really well too. Very happy with this.

Been using it for years on all types of cleaning tasks.. Even works well in the laundry

Love my 409!Great value size! I use a ton of 409 in my house to clean

Best household cleaner on the market.

Bulk is better price is great

Works great. Good value.

works ok

Wasn't All purpose cleaner. Shipped multi surface cleaner.