The sprayer contains improved chemically resistant components, and we've added a padded end cap so that the sprayer rests even more comfortably in your hand. Delta's spray master continues to offer high output performance in a powerful package of great design and heavy duty chemical resistant material construction.  The bottle is made of a thicker resin which offers greater durability and longevity. This sprayer now offers compatibility and durability with an even wider range of chemicals. The bottle graphics include check off grids for identifying contents and handy graduation scales for diluting liquids.