Product review (5 stars): Lobb WA-2
This is a loop / belt that fits around a 7" circular drum.

It is 8" wide. The removable mesh exterior net is 4" wide.

My Lobb WA-2 humidifier is a 7" diameter drum that takes a 5" wide belt. What I did was move the exterior mesh to one side and cut this belt in half with a pair of regular old scissors, giving me 4" wide belt: so I get two belts for the price of one! Just have to remember to take the exterior mesh off when I throw out the used belt pad, then just slip it on the new one.

Lobb direct and HVAC stores sell this belt pad thing for $42 for a 5" wide one-without the mesh. I'll take two 4" wide ones for a fifth the price any day.

Now that I know this works I can stock up on them.

Home Depot sells them for .50 cents less, but even on Amazon these get back ordered for 2 months. I just put it in my wish list and check on it occasionally. Make sure when you actually put it in your cart that it doesn't say "Fulfilled by Amazon in 1-2 Months".

Michael Logusz