Filtrete 16x25x4 AC Furnace Air Filter, MPR 1550, Fits Honeywell and Lennox Devices, Healthy Living Ultra Allergen Deep Pleat, 2-Pack (actual dimensions 15.88 x 24.56 x 4.31)

I have used Wet & Forget for three years to protect the screens in my screen porch from developing moss, mildew, and that Green Gunk. Before using it, I had to powerwash the screens from the outside, which is not simple. Now, after my annual powerwash of the porch screen room and screens from the inside, which is simple, I use a mop-like tool to wet the screens on the outside, which is also simple. Spraying doesn't work well because the product goes through the screen into the screen room and takes a lot of product. Using a mop-like thing on the end of a pole is a quick, effective, easy job. It really, really works to stop the Green Gunk, and my screen porch is mostly North facing. Cheap, effective, simple to put on. Oh yeah, I called the company before using the first time to ask if the produce would harm or deteriorate the nylon screen. Nope.

I have already tried the product. It was good. The mold and algae were slowly disappearing. I will sure order again. Only thing i hope is the seller can lower down the price a bit as it's quite an expensive product.

I was very surprised how well this worked. The side of my house (see red highlight in pic) had algae growing on it. I sprayed on wet & forget and within a few days can see an amazing result. I will definitely buy it again.

The Wet and Forget is pretty accurate but it does not remove the mold. It kills it and let it set a day and you can wipe it all off or power hose it off. Good product.

Works ok but takes several applications. Green is gone, but black is only gray now.