WE ORDERED 04U-S64 AND 04U-S66 AND WE MADE 4 HOSES AND THE FITTINGS ALL LEAKED IN THE SAME PLACE AROUND THE CRIMP ON THE COLLAR WHERE IT IS STAMPED. I CALLED THEY SAID THEY MADE HOSES OUT OF THE FITTINGS THEY HAD WHICH MOST LIKELY WAS FROM A DIFFERENT BATCH THAN OURS SINCE MINE WAS ORDERED A FEW MONTHS PRIOR. AND I KEPT BEING INSTRUCTED TO MEASURE OUR CRIMP BUT IT IS NOT LEAKING ON MY END MY CRIMP WAS FINE. IT WAS WHERE IT WAS MADE AND STAMPED I DUG IN THE BIN AND FOUND FITTING THAT WAS NOT FROM THAT BATCH AND THEY WORKED WITH NO LEAKS. SO I STARTED ORDERING FROM ANOTHER COMPANY