I designed some nozzles, one with a 45o angel and so it is great to use in bathrooms and kitchens, one with a regular hole, this because the provided nozzles are weak and you know when you push a little to hard they break away from the cartridge, and the third nozzle I made with a very small hole of 1mm, I use acrylic filler for the models I make to close the seams and this nozzle works perfect.
You need a good sealant cap that works? Go here https://www.thingiverse.com/thing:3375441
Also made a watertight box for electric cables that fits, https://www.thingiverse.com/thing:3398756
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