Fire Hydrant Valve Rubber for AFC/American-Darling Fire Hydrants Hydrant Model:AFC American Darling 4" B-50-B (40-50-41) Its 83 kHz frequency means

Its 83 kHz frequency means that the UT 830 can accurately locate underground gas and water pipelines beyond insulated connection points – even with long pipes and weak signals

pressure gauge

Flexible use

are numerically displayed and can be compared objectively

Overall thickness with AMR bracket - 2-1/4"

Fire Hydrant Valve Rubber for AFC/American-Darling Fire Hydrants Hydrant Model:AFC American Darling 4" B-50-B (40-50-41) Its 83 kHz frequency meansTrumbull Valve Rubbers for AFC Fire Hydrants * Hydrant names are registered trademarks of American Darling American Flow Control, McWane, Mueller or U. S. Pipe; Trumbull Industries is not affiliated with these companies. We stock the following for AFC (American Darling): AFC American Darling 4" B 50 B (40 50 41) AFC American Darling 5" B 50 B (50 50 41) AFC American Darling 5 1 4" B 62 B (54 62 41) See our other listings for these models: Mueller 4 1