You need to apply heat (first Pick) while applying heat grab the tip of the shroud with glove and rotate and pull, i think they used red locktite, once the tube comes off the base use 2.5 mm hex key to remove base, good luck.
I've had the Coltri MAC-6 about 6 months "fills a 80 cuft in 20 mins tops them off in 6 mins" true quote. Talk to Mitch at Nuvair, good guy, you won't be sorry.
On the Nuvair website the sale price for the gas engine model was for $2500.00, I had the website saved, but looks like they took it down, you might want to check the reviews on the $1999.00 compressor link you have, not very favorable.
I’ve had the original shoebox compressor for 12 years with no problems still working, 6 months ago got the Coltri MCH-6 electric 220V, what the shoebox took one hour and forty five minutes to fill my tank from 3500PSI to 4500 PSI the Coltri does in seven minutes, life is too short, spend a...