Does this item need an impact valve?
The Delta 578-MPU-DST already includes a valve.

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Product Features:
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Variations:
About Delta:
Delta is more than just a brand of kitchen and bathroom faucets. It’s a name that represents what’s possible in today’s plumbing technologies. Every kitchen and bathroom in every home is unique, and with a wide range of pricing and features, Delta faucets and fixtures can meet every need.
Delta is driven by its quest for innovation—and this applies to its kitchen and bathroom faucets and fixtures. From Touch2O technology (which turns the faucet on and off with just a touch) and MagnaTite technology (which eliminates droopy pull-down spray heads), to H2Okinetic showers (for a warmer and more luxurious shower experience), your life is simplified through innovations. And if you’re searching for a product to offer an eye-catching focal point, while providing durability and reliability for a lifetime, look no further than Delta.
From extremely affordable and reliable faucets to fully loaded fixtures featuring today’s leading technologies, Delta has a faucet for everyone.
This product is listed under the following manufacturer number(s):
*Denotes a finish or option that has been discontinued
The Delta 578-MPU-DST already includes a valve.
The difference between the Delta 578-MPU-DST and 578-DST is the "MPU" version has a metal drain with Pop-Up fitting while the other has a Polypropylene Pop-Up fitting. The base plate does not need to be used for 1 Hole Mounting.
The escutcheon plate is optional, you are not required to use it.
| Faucet Holes | 1 |
|---|---|
| Spout Height | 2.3125 |
| Handle Material | Metal |
| Faucet Centers | 4 |
| Height | 7.1563 |
| Low Lead Compliant | Yes |
| WaterSense Certified | Yes |
| Mounting Type | Single Hole |
| Theme | Traditional / Classic |
| Spout Reach | 5.625 |
| ADA | Yes |
| Delta Smart Solutions | Diamond Seal Technology |
| Category | Top Rated |
| Country Of Origin | USA |
| Valve Included | Yes |
| Max Deck Thickness | 2.5 |
| Valve Type | Ceramic Disc |
| Made in America | Yes |
| Diamond Seal | Yes |
| Flow Rate (GPM) | 1.5 |
| Escutcheon Included | Yes |
| Width | 6.25 |
| Overall Height | 7.15625 |
| Material | Brass |
| Handles Included | Yes |
| Handle Style | Lever |
| Drain Assembly Included | Yes |
| Water Efficient | Yes |
| Number Of Handles | 1 |
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