
Looking to upgrade your shower experience? The Moen S3104 Smart Shower Valve brings tech and comfort together for a smarter bathroom setup. You get precise temperature control, app settings, and voice activation all in one sleek device. It’s a serious upgrade from the basic manual shower system.
This valve isn’t just smart. It’s built for control, safety, and convenience. The ExactTemp® tech helps you keep the water right where you want it — no random hot or cold blasts. You can even control everything from your phone or smart speaker.
If you’re thinking of remodeling your shower, this device checks all the right boxes. Let’s look at how it works, how to install it, and what makes it worth the price.
What Makes the Moen S3104 Smart Shower Valve Stand Out?
The Moen S3104 Smart Shower Valve is designed to fit most homes and deliver modern features with minimal space.
Specs and Design Overview
- Size: 13.75 x 15.75 x 1.81 inches
- Weight: 8.4 lbs
- Solid brass body
- Fits standard 2×4 walls
- Sleek and modern design
It feels solid and durable, thanks to its brass build. It’s made to last in high-humidity spaces without damage. The size fits into most wall setups, so it’s great for upgrades or new installations.
How the Moen Digital Thermostatic Shower Valve Improves Your Routine
This isn’t just about turning water on and off. It’s built for precision and comfort.
Key Features:
- ExactTemp® control holds your perfect temp within half a degree
- Connects with the Moen app for full custom control
- Up to 12 custom presets (set temps, timing, outlets)
- Pause and warm-up modes
- Control four outlets with one system
You can get everything set up for different family members. Or just keep your perfect shower saved. It’s a time-saver and a comfort booster. The digital thermostat removes the guesswork.
Installation Details and What You’ll Need
You’ll want a pro to handle the setup, especially if this is your first smart shower system.
Requirements:
- 120V/60Hz GFCI outlet
- Access panel for servicing
- Wi-Fi network
- TS3304TB or TS3304BL controller
- Proper ventilation for long-term safety
Installation isn’t too complex for professionals. Once it’s installed, it’s easy to maintain and use daily.
Compatibility, Features, and Connectivity
The Moen Smart Shower 4-outlet valve is packed with smart home features. It works with:
- Amazon Alexa
- Apple HomeKit
- Google Assistant
You can use voice commands to start your shower, set your temp, or pause the water. You can even build routines through your phone and schedule your shower the way you like it.
Moen S3104 Installation Guide and Cost Breakdown
Here’s what you’re looking at for the current price across major retailers:
- Moen Official – $1,418.55
- Amazon – $1,377.23
- Wayfair – $810.60 (marked down)
- SupplyHouse – $1,377.23
It includes a 5-year limited warranty on digital parts. There’s also an optional battery backup (Model 179573) in case the power goes out.
Moen S3104 Compatibility with Other Smart Devices
The Moen S3104 compatibility lineup is solid. It plays nice with common smart home setups. You can use the app or connect through your preferred voice assistant. The app lets you control outlets, set timers, and track water use — all from your phone.
This makes it a great choice for anyone already using smart tech at home.
Is the Moen S3104 Smart Shower Valve Worth It?
If you’re tired of guessing your water temp or just want your shower to feel a little more high-tech, the Moen S3104 Smart Shower Valve hits the mark. From temperature precision to voice commands, it’s like upgrading your bathroom to match the rest of your smart home.
It’s sleek, reliable, and loaded with features you’ll actually use. You’re not just getting comfort. You’re getting convenience every single day.
Thinking about making the switch? You can grab yours on Amazon today and start enjoying smarter showers.

