The Manual Fill-One was introduced primarily for body shops and mobile repair technicians who fill smaller quantities of aerosols and retail stores that didn t want the background noise of an air-compressor running. One of the most over-looked benefits of the manual version is that there are no internal seals or wearable components, which is an asset to businesses who rely heavily on the machine for daily use. The filling process takes only about 20-seconds Turn the handle until it stops (about 12 or 13 turns) and then reverse the motion. Whether your filling needs require the pneumatic or manual version, Fill-One+ machines offer unmatched reliability and greater convenience for preparing custom aerosols! The Manual Fill-One+ introduces a more durable two-piece composite sleeve in-place of the former rubber boot to better protect the hand crank. The Manual Fill-One+ also includes a universal aluminum cup for inside/outside clipping aerosols, plus a pre-drilled mounting plate. The color was changed to deep black to distinguish it from the previous version.