Brass works much better.... I was able to cinch it down tight. The plastic, still had a pin leak as I was afraid to crank on it... but held up to heat OK w gold tape.
Amazon link below:
Anderson Metals Brass Hose Fitting, Tee, 3/8" x 3/8" x 3/8" Barb
https://www.amazon.com/dp/B000LNQ2F8..._LRsqBb9Y0P2EF
__________________
(Current) G12 750i X Drive / M-Sport / LOADED
(Current) 997 Turbo / 6MT / HRE FF01, Land Rover LR3 - Overlanding Family Adventure Shed, E60 525i - "family beater", Alfa Romeo Spyder Veloce - garage art
(Gone) F10 550i / M-Sport, D2 Audi S8, AP1 S2000, Z32 300zx, S13 240sx