I messed around at plumbing stores to find a configuration that could replace my swamp cooler drain adapter. Found some things that were...okay. I finally ordered the right part. It’s perfect. My swamp cooler can once again refresh the reservoir water every 8 hours.

Fit right In, exactly like original. Perfect size and fit.

Looks like the correct product won't know till spring, when I wake the cooler from it's winter nap.

Fit perfectly in my csc641 Master Cool. Parts at the local stores did not. No issues thus far. Would be 5 stars but shipping was nearly as much at the part itself.

Just what I needed