The sprayer contains improved chemically resistant components,?áand 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?áperformance in a powerful package of great design and heavy duty chemical?áresistant material construction.?á The bottle is made of a thicker resin which offers?ágreater durability and longevity. This sprayer now offers compatibility and durability with an even wider range of chemicals. The bottle graphics include check off grids?áfor identifying contents and handy graduation scales for diluting liquids.