An intelligent whole-home water security system providing real-time pressure, flow, and temperature monitoring with automated emergency shutoff. The Moen Flo Smart Water Monitor & Shutoff installs directly on your home's main incoming water supply line. Engineered to safeguard Ontario residences against burst pipes, fixture failures, and hidden pinhole leaks, Flo conducts daily automated MicroLeak health tests and instantly isolates water flow if catastrophic line failure or abnormal continuous consumption is detected.
Technical specifications
| Warranty | Flo Technologies warrants that the product will be free from defects in materials and workmanship for a period of one (1) year from the date of delivery following the original retail purchase Extended product warranty available through FloProtect plan Source: Moen warrantyWarranty is provided by the manufacturer under its own terms. See the source link for full details. |
|---|
Key features
- Automated and remote shutoff: motor-driven ball valve automatically closes upon detecting abnormal continuous flow, catastrophic pipe bursts, or freezing temperatures, and can be manually controlled via the Moen Smart Water app or on-device knob.
- MicroLeak health tests: isolates plumbing lines overnight to run high-resolution pressure decay tests capable of sensing leaks as small as one drop per minute behind walls or beneath slabs.
- Triple-parameter monitoring: integrated ultrasonic flow sensors, pressure transducers, and thermal sensors deliver continuous real-time telemetry to your smartphone.
- Smart learning algorithms: learns household water usage habits across fixtures, differentiating between normal multi-appliance use and irregular leakage patterns.
- Manual override control: mechanical knob on the top housing allows manual valve operation during electrical power disruptions using the included 5/16 in. hex key.
- Weather-resistant construction: IPX5 certified enclosure permits installation indoors or in sheltered outdoor mechanical enclosures.
Pipe size varieties & selection
Choosing the correct pipe size ensures unhindered water flow and negligible pressure loss across high-demand residential plumbing systems. The Flo series is available in three distinct nominal supply pipe diameters:
- 3/4 in. NPT (SKU 900-001): designed for standard residential supply lines measuring 3/4 in. nominal copper or PEX (up to 1.25 in. OD). Rated for continuous household flows up to 57 L/min (15 GPM) with minimal pressure drop. Includes two 3/4 in. threaded brass tailpieces.
- 1 in. NPT (SKU 900-006): optimized for larger modern custom homes, multi-bath luxury residences, or properties with dedicated irrigation branch lines fed by 1 in. nominal mains. Supports flows up to 95 L/min (25 GPM). Includes two 1 in. threaded brass tailpieces.
- 1-1/4 in. NPT (SKU 900-002): heavy-duty configuration for executive estates, geothermal water-loop supply feeds, or high-volume residential plumbing systems requiring maximum hydraulic capacity up to 132 L/min (35 GPM). Includes two 1-1/4 in. threaded brass tailpieces.
Specifications
| Parameter | 3/4 in. (900-001) | 1 in. (900-006) | 1-1/4 in. (900-002) |
|---|---|---|---|
| Model / SKU | 900-001 | 900-006 | 900-002 |
| Hydraulic & Plumbing | |||
| Nominal pipe size | 3/4 in. NPT | 1 in. NPT | 1-1/4 in. NPT |
| Tailpiece fittings | Threaded brass unions (included) | Threaded brass unions (included) | Threaded brass unions (included) |
| Maximum operating pressure | 175 psi (12 bar) | 175 psi (12 bar) | 175 psi (12 bar) |
| Rated flow capacity | Up to 15 GPM (57 L/min) | Up to 25 GPM (95 L/min) | Up to 35 GPM (132 L/min) |
| Pressure drop at rated flow | < 2.5 psi | < 3.0 psi | < 3.5 psi |
| Valve mechanism | Quarter-turn motorized ball valve | Quarter-turn motorized ball valve | Quarter-turn motorized ball valve |
| Monitoring & Telemetry | |||
| Leak sensitivity | MicroLeak detection down to 1 drop/min | MicroLeak detection down to 1 drop/min | MicroLeak detection down to 1 drop/min |
| Monitored parameters | Water flow, line pressure, temperature | Water flow, line pressure, temperature | Water flow, line pressure, temperature |
| Daily automated testing | Health Test pressure-decay test | Health Test pressure-decay test | Health Test pressure-decay test |
| Connectivity | Wi-Fi 2.4 GHz (802.11b/g/n) | Wi-Fi 2.4 GHz (802.11b/g/n) | Wi-Fi 2.4 GHz (802.11b/g/n) |
| Mobile platform | Moen Smart Water App (iOS & Android) | Moen Smart Water App (iOS & Android) | Moen Smart Water App (iOS & Android) |
| Smart home integration | Amazon Alexa, Google Assistant, Control4 | Amazon Alexa, Google Assistant, Control4 | Amazon Alexa, Google Assistant, Control4 |
| Electrical & Environmental | |||
| Power supply | 100–240 VAC, 50/60 Hz to 12 VDC | 100–240 VAC, 50/60 Hz to 12 VDC | 100–240 VAC, 50/60 Hz to 12 VDC |
| Power cord length | 3.0 m (10 ft) outdoor-rated cord | 3.0 m (10 ft) outdoor-rated cord | 3.0 m (10 ft) outdoor-rated cord |
| Enclosure rating | IPX5 water-resistant | IPX5 water-resistant | IPX5 water-resistant |
| Operating temperature | 0 °C to 60 °C (32 °F to 140 °F) | 0 °C to 60 °C (32 °F to 140 °F) | 0 °C to 60 °C (32 °F to 140 °F) |
| Dimensions & Physical | |||
| Valve body length | 146 mm (5.75 in.) | 152 mm (6.00 in.) | 168 mm (6.61 in.) |
| Installation spacer length | 113 mm (4.46 in.) | 119 mm (4.69 in.) | 133 mm (5.24 in.) |
| Overall height | 150 mm (5.90 in.) | 158 mm (6.22 in.) | 170 mm (6.69 in.) |
| Body width | 66 mm (2.60 in.) | 71 mm (2.80 in.) | 81 mm (3.19 in.) |
| Certifications | |||
| Plumbing & electrical standards | IAPMO IGC 349, UL1951, CSA C22.2 | IAPMO IGC 349, UL1951, CSA C22.2 | IAPMO IGC 349, UL1951, CSA C22.2 |
| Potable water safety | NSF/ANSI 61, NSF/ANSI 372 (lead-free) | NSF/ANSI 61, NSF/ANSI 372 (lead-free) | NSF/ANSI 61, NSF/ANSI 372 (lead-free) |
| Wireless compliance | FCC Part 15 Class C, ISED RSS-247 (Canada) | FCC Part 15 Class C, ISED RSS-247 (Canada) | FCC Part 15 Class C, ISED RSS-247 (Canada) |
Before you buy
- Main supply placement: the device must be installed on the main incoming potable cold water supply pipe immediately after the water meter, main manual shutoff, and pressure regulating valve (PRV), but prior to any water heaters or water softeners.
- Fire sprinkler prohibition: never install the Flo Smart Water Monitor on dedicated fire suppression or residential sprinkler branch circuits; fire protection piping must remain uninterrupted upstream of the device.
- Continuous electrical receptacle: requires an unswitched standard 120 V electrical outlet within 3.0 m (10 ft) of the valve body; optional low-voltage extension cables are available for longer runs.
- Private well requirements: when installed on private well water supplies, Flo must be placed downstream of the pressure tank, sediment filtration, and water treatment systems to prevent particulate debris from obstructing internal turbine sensors.
- Pipe dimension confirmation: verify whether your home's main incoming plumbing line is 3/4 in., 1 in., or 1-1/4 in. nominal pipe diameter prior to ordering to ensure matching union tailpieces.
Have questions about your main water supply sizing, plumbing layout, or smart water device installation? Request a product quote and our equipment team will assist you.
Frequently asked questions
How does the Moen Flo Smart Water Monitor detect hidden leaks?
Moen Flo uses proprietary Micro-Leak detection technology to run automated daily health tests on the home's plumbing system, monitoring micro-pressure drops to detect leaks as small as a single drop per minute behind walls or under foundations.
What happens if a major pipe rupture or frozen pipe occurs?
If the sensor detects catastrophic water flow (such as a burst pipe, frozen line, or running toilet), the integrated motorized brass ball valve automatically shuts off the main water supply within seconds and sends an instant push notification to your smartphone.
What pipe sizes are available for the Moen Flo valve?
The Moen Flo is available in three pipe sizes: 3/4-inch (Model 900-001), 1-inch (Model 900-006), and 1-1/4-inch (Model 900-002) with threaded brass tailpiece union connections.
Where should the Moen Flo valve be installed?
The valve must be installed on the main incoming municipal or well water supply line after the water meter and pressure regulator, but before any plumbing splits (except for dedicated fire sprinkler lines which must remain unmetered).
What electrical connection is required for operation?
The valve includes a 120 V AC power adapter with a 10-foot power cord. An optional backup battery pack is available to maintain monitoring and automatic shutoff capabilities during electrical power outages.
Does the Moen Flo require a Wi-Fi connection?
Yes. The unit connects to your home's 2.4 GHz Wi-Fi network to transmit real-time flow rate, water pressure (psi), water temperature, and daily consumption analytics to the Moen Smart Water app.
Can the valve be opened and closed manually?
Yes. In addition to smartphone control, the valve body features a manual physical override knob that can be turned using a standard hex key or flathead screwdriver during service or power loss.
What water pressure and temperature ratings does the valve support?
The lead-free brass valve body is rated for operating water pressures up to 175 psi (1,200 kPa) and water temperatures between 32 °F and 140 °F (0 °C to 60 °C).
Can the system alert homeowners to freezing pipe conditions?
Yes. An internal temperature sensor monitors incoming water temperature and triggers an alert if water temperature inside the line approaches 36 °F (2 °C), warning of impending freezing risks.
Is the valve rated for outdoor installation in Canada?
The valve enclosure is NEMA 4X / IPX5 weather-rated against water spray, but in Canadian climates with sub-zero freezing winter temperatures, the valve must be installed indoors in a heated utility space or protected mechanical room.
Documents
- Product specification sheet — Moen Flo 3/4 in. Smart Water Monitor and Shutoff (900-001) (PDF)
- Product specification sheet — Moen Flo 1 in. Smart Water Monitor and Shutoff (900-006) (PDF)
- Product specification sheet — Moen Flo 1-1/4 in. Smart Water Monitor and Shutoff (900-002) (PDF)
- Installation guide and instruction sheet — Moen Flo Smart Water Monitor and Shutoff (INS11955) (PDF)
Specifications derived from Moen technical specification sheets 900-001sp, 900-006sp, 900-002sp and installation guide INS11955. Specifications are subject to change by the manufacturer.
Common questions
Is installation included?
No. AVL Shop sells equipment only. Installation is done by an independent licensed contractor that you hire.
How is freight charged?
Freight cost is included in your written quote before you pay.
What warranty does this product have?
The manufacturer warranty applies. Where we have the manufacturer’s exact wording, it is shown in the Warranty row of the specifications on this page, with a link to the source.
How do I get a quote?
Use Request a quote on this page and send the model and your city or postal code.