DIAL 3437 Mastercool Cooler Pad, 40" x 23" x 8"

Cut to fit

I bought this pad last season from marketplace seller "True Value Hardware Outlet" and am into my second season with them. They are working well and changing the pads made a huge difference in cooling (old pads were almost 6 or 7 years old). What I did this season though is I got one of the $4 cooler pump by-pass kits that hooks to the output of the pump and allow you to trickle a little bit of the water thru the overflow hole so that the water in the cooler changes more often and doesn't build up mineral content and prevents the pads from scaling up so fast. That should make a huge difference in how long these pads last and I'm watering my neighbor's apple trees at the same time! Those are some good apples and with more moisture it should be a good harvest this year... James

Make sure you soak this thing with a hose before you install it, and I mean soak it. If you install it there will be a terrible smell for a day or two if you only run the pump on your cooler (I made this mistake). Whatever chemicals they use to treat this filter or glue it together has a crazy strong odor. That being said I'm into my second season of using it and it's still working just fine. I recommend a calcite filter for your cooler line if you have hard water where you live.

These fit my dad's cooler perfectly, including the groove for the PVC water distribution. I used tea tree oil, as recommended by others, and the slightly fishy smell was gone within about 48 hours. Not an problem.

Great Price. They are not exactly the same as the originals but I believe they are even better.

they fit with out a side shim, I used dawn soap 4 table spoons, ran it, smell gone after 3 hours

Perfect for my aerocool 4800 down flow!

it comes in two parts that fit side by side in your swamp cooler. the directions were not thorough to me, but i watched another review which instructed me on which direction to install them. if installed backwards, the air flow is not good and thus, won't cool off effectively. they stamped directional arrows on the sides, but it was somewhat faded and hard to read. once installed, they worked well. i did not smell a weird odor when first installed and the swamper turned on....as others smelled. overall i'm satisfied!