NHL15 4 in 1 Extraction Carpet & Upholstery Vacuum Cleaner - NumaticNHL15 Industrial Carpet Cleaner Hi lo 4in1 Extraction Vacuum Numatic The NHL15 Extraction Carpet Vacuum Cleaner is the newest member of Numatics large family of carpet cleaning machines, built from the ground up with practicality in mind, designed to be quick, easy and effective to use, requiring little preparation to get the machine ready for cleaning. For the first time on a Numatic machine, you can choose the pressure at which you inject your