I used these (both 3 and 4 pin connectors) to make a filament holder for my 3D printer (see image). This worked great with PVC pipe I bought and cut to size at one of the local wholesale stores. I didn't use any glue or anything like that and it holds up great. My only "complaint" is that I didn't need so-called furniture grade (and therefore more expensive) PVC for this project, but I couldn't find anything other than furniture grade on Revain for such connectors. However, this is not the fault of this small product. My wife wouldn't allow any visible PVC in the house anyway (apart from my hobby room) - even with these components, which I think are quite beautiful - which I can't "herald" here. product for.
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