American Jetter 51T Trailer Sewer Drain Cleaner 76 HP EFI True 18 GPM@4000 PSI by | Jul 24, 2026Out performs all 15-18 GPM jetters at the nozzle with less than 66 HP gas or less than 63 HP diesel! Most only carry about 15 GPM, even when rated up to 18 GPM, (Why?. Have a jetter you would like to check the GPM on?. ).
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