NOTE: Requires a #9 O-Ring (often found at hardware stores as a “faucet o-ring”) to function properly.

I lost the little cleanout cap / plug that goes on the end of my Melnor oscillating sprinkler.

When I contacted their customer support to get a replacement, they instead sent me an entire brand new sprinkler (!) so I used the new cap as a reference and modeled this replacement one for my (now-functioning) original sprinkler.

Hope someone out there finds it useful one day!