PSiSC, located in Columbia SC, is the innovator of our Restroom in a Box program to include everything necessary to construct & remodel your restroom facilities. By using our Columbia Partitions, Columbia Accessories, Columbia Hi Speed Hand Dryers and your specified plumbing equipment we can provide all of your Restroom Construction needs on time and at the lowest cost. By using our program you will insure your, Bathroom Accessories, Bathroom Fixtures, Building Material ...