The Waterpik SM-421 features the design of the shower head that started it all. Featuring Waterpik's massage technology, this showerhead offers a revitalizing and invigorating shower from any water pressure. With multiple settings, you can change between a gentle spray to a high-pressure massage depending on your mood. Experience the pleasures of a custom shower provided by Waterpik's Original Shower Massage, and you'll never go back to an ordinary shower head again.
| Compare Waterpik Fixed Mount Line | ||||||||||
| FEATURES |  SM-2UC The Original 5 Mode Shower |  SM-423 The Original 4 Mode Shower Massage |  SM-623CG The Original 6 Mode Shower Massage |  SM-421 The Original 4 Mode Shower |  NML-603 Fixed Mount 6 Function, Chrome Massage |  NSC-629 New Visions 6 Mode Massage |  NSL-623 New Visions 6 Mode Charleston |  TRS-523 Elements 5 Mode Linea |  TRS-529 Elements 5 Mode Shower |  TRS-523/TRS-553 2 in 1 Shower System Self-Clean, Linea |
 Finish | White | Chrome | Chrome | White | Chrome | Brushed Nickel | Chrome | White | Brushed Nickel | Chrome |
 Settings | 5 A B C D E | 4 A B C G | 6 A B C D G H | 4 A B C G | 6 A C D E H I | 6 A C D F G H | 6 A C D G H I | 5 A B C H I | 5 A B C H I | 5 A C G H K |
 OptiFlow Up to 30% more Water Force | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
 Head Size | 3.25" | 3.25" | 3.25" | 3.25" | 3.25" | 3.25" | 3.25" | 3.25" | 3.25" | N/A |
 Spray Control Ring | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
 2.5 GPM Water Saver | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes | Yes |
 Warranty | 5 Year | Lifetime | Lifetime | Lifetime | Lifetime | Lifetime | Lifetime | Lifetime | Lifetime | Lifetime |
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Customer Review: Shower head
Great shower head. Very versatile and effective to use. Saves water too. Extremely economical.
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