Pre-rinse units are vital in commercial restaurants as many pots are much too large to fit in even the largest of commercial dishwashers. And when it comes to scouring the bottom of a 100-qt stock pot you can't expect do much damage with a normal faucet. Royal Industries offers an excellent option for your dish washing needs in its pre-rinse spray valve (ROY PR 1 S). Used in conjunction with a pre-rinse unit this spray valve will provide the proper amount of water pressure in order to peel loose debris from the surface of your pots and pans during cleaning.