variant of http:__www.thingiverse.com_thing:103318 with 1_8 barb connection to fit poly pipe.
https://jide-projects.obs.myhuaweicloud.com/tTgSjtZJR7xHC/
Model Inspector
Size and Count
Matcap
Wireframe
Vertex Normals
UV Checker
Base Color
Metalness
Roughness
Clipping