Features: Push bar complies with the standards of the ADA. Bulk soap is up to 55 Percent more cost effective than prepackaged soaps. Easy view of the soap level allows for refills on an as-needed basis to ensure there is always soap in the dispenser. No cartridges or bags to dispose of. DuPont Viton is used for the O-rings to provide superior resistance to the effects of anti-bacterial soaps and sanitizers.