Please show us where it goes and what it does when you refit it/its replacementIt's the inlet for a filter..., need to find another one
If you would have posted this ^ in the begging.......No photos of where it fits, but is the inlet to a pressurised water filter... that part faces upwards, same as the picture so it does not disrupt the filter media (sand and gravel)... assume the nozzles are there for 2 reasons.... they restrict and share the flow across the other 7 filters and also distribute the water across its 3m bed
The work at 7 bar at about 8 l/s
It's definitely not a wind up







