Well this is what i have so far, The Pex tee
has a smaller outer diameter so the hose has to be tighter thus the leaking others were getting. The Napa tee
is the best fit but, doesn't have the longevity being plastic. The next solution is the Apollo tee
from Lowes. The diameter is larger (1")on the ends but its not much bigger than the Napa tee in terms of fitment on the hose.
The hoses used are 3/4 heater hose
and a 3/8
hose on the tee.