It's dead simple, parts list:
2 3/4 - 1/4 NPT adapters for the filter housing
1/4 NPT union and a tee for the gas and cable
1/4 tube fitting for the hose and a hose barb
1/4 tube fitting for the cable
2bar pressure gauge
Adapter to turn gauge from bsp to npt
To be honest I never thought of dialling the IP down. I like the excitement of 12bar
I was planning a blob of hot melt glue on the ends. I used that to seal the gland.
All the parts were from Ebay or the shed except the gauge which was from a proper pneumatics supplier.
The housing has a purge valve on top, you can just see it on top on the pic.
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