Anyone know a good place to get evaporative cooling pads??

[gixrj18]

I've checked a couple of places for evaporative cooling pads for my greenhouse intake fan, and the places I checked so far wanted $200 to ship $20 worth of cooling pads, two of them only weighing a few pounds total, and measuring 12" x 24" x 3" each. Just wondering if anyone knew a better option.

[rtsingleton]

I'd be really interested to know a good place too...