This wall mounted Hand Cleaner dispenser is designed for hand cleaners with grit in them,
  like PIC's Dynamite, Orange Nitro and Grit King Hand Cleaners.
This is a ball valve type pump, and is constructed of plastic, an aluminum shroud and lever, and stainless steel tubing
  to provide long-lasting performance and durability.
One customer told PIC this pump had been used regularly for 10 years by multiple employees, before it needed to be replaced.

Click the below link to go to the manufacturer's website to see pictures and additional details.
Link to manufacturer's website for this model