SummaryI can't believe no-one has done this before. It's a poly pipe joine for 1 1/4" ag pipe, green stripe, medium density pipe, what ever you want to call it. Plain old "ag pipe" in Oz. You know what its like, it's a weekend, it's a 3 hour return trip to the hardware store but it's closed anyway, and you've just dug ut the pipe you forgot was there. As always, the box of spares in the shed has every other size except the one you want. No water for the animals till you fix it. Well here is one solution, print it. The o rings are standard 1/8" x 1 3/16" ID.Print SettingsPrinter Brand: RepRapPrinter: Prusa i3Rafts: YesSupports: YesResolution: 0.15Infill: solidNotes: Raft on the insert only. Support on the joiner and insert. I used ABS for everything.