how to use our 3811 nozzle and 3813 nozzle


For those small capacity size fan nozzles like 10 and less, please use our 3811 type, and for those bigger ones, please use 3813 type. 3811 type has 45 degree slant slots at both sizes of the opening, that to prevent dripping when the nozzle is working. For those capacity sizes like 15 and bigger, the openings are big, dripping will not happen, so the slant slots are not needed any more, 3813 is suitable design.