the S19-200B unit comes with two adapters to convert the standard thread to fit faucets with 15/16" x 27 thread (female) and 13/16" x 27 thread (female)

while in the back

Check Spring Retainer

Model Number: 401

In the interests of safety and the protection of end users

3M Neutral Cleaner Concentrate, 2000Ml Bottle - MMM3H Nominal Size-18" X 1.5" the S19-200B unit comes withNo rinse, low foaming formula won't harm washable hard floors Use with mop or automatic scrubber Yields 180 ready to use gallons For use with 3M Portable Dispensing System. Green Seal Certified no rinse, low foaming formula wont harm washable hard floors or leave soapy residue that can dull or soften floor finish. Use with bottle, mop or automatic scrubber. Fresh scent. For use with 3M Portable Dispensing System. Concentrate bottle yields 180 ready to