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Last updated September 2026

Frizzlife LP365-P

A main-line valve that watches flow and pressure with no moving parts and keeps working on its battery, held back by a thin app and mixed experiences with support.

4.5
359 ratings

4.5 vs the 4.1 average of 8 water shutoff valves we track

5% OFF
$313.49
$297.81
As an Amazon Associate I earn from qualifying purchases
Launch Year: 2025

Model: LP365-P

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Our review

Frizzlife LP365-P Review: Ultrasonic Whole-Home Shutoff With Pressure Readings and a Battery Fallback

The verdict

The Frizzlife LP365-P is an inline smart shutoff valve for the home's main line that measures flow with an ultrasonic sensor and shows line pressure, then closes automatically when a leak or runaway flow crosses your protection settings. Owners praise its easy app pairing, how well it catches real events such as a stuck toilet flapper, a burst sprinkler line or a pool fill, and the lower cost compared with the best-known rival. The trade-offs are a basic app, a plumber-grade install, a Wi-Fi band the maker does not publish and a handful of reports of leaks at the fittings or slow support. It is a strong value pick for homeowners who want whole-house protection and pressure data.

Best for
  • Homeowners protecting against water damage
  • Pressure-monitoring fans
  • Home Assistant users
  • Value-minded buyers

Pros

  • Ultrasonic flow sensing with no moving parts, down to about 0.01 GPM
  • Shows line pressure alongside flow
  • Keeps monitoring and can still shut off on its internal battery
  • IP67 body for utility rooms and outdoor installs
  • Fits 3/4 inch and 1 inch pipes with included adapters
  • Home Assistant owners report reading flow and valve data
  • Priced well under the best-known whole-home shutoff valves

Cons

  • Needs a plumber and a bypass line for a clean install
  • App is basic, with limited usage comparisons and alert tuning
  • Wi-Fi band is not published and Bluetooth is not documented
  • No confirmed Alexa, Google Home, Apple Home or Matter support
  • No temperature sensor, so no freeze alerts
  • No wired or wireless leak sensor input
  • Mixed reports on fitting leaks and support response

Who is the Frizzlife LP365-P for?

It is built for the main supply line, the same job as a Moen Flo or a Phyn, not for a single appliance. It is the Flow+Pressure version of the LP365 (the other version swaps pressure for temperature), sold for 3/4 inch and 1 inch pipes with included NPT adapters, with a separate 1-1/4 inch version. It needs a nearby outlet and Wi-Fi, and Frizzlife recommends a plumber. Buyers are mostly homeowners who want automatic protection against burst pipes, running toilets and forgotten sprinklers, and who care about seeing line pressure.

What owners like about the LP365-P

Owners most often praise the protection actually working: reports describe a stuck toilet flapper, a broken sprinkler line and a pool being filled all being caught, with the valve closing and a phone alert arriving, and the water coming back with a tap in the app. The ultrasonic sensor has no moving parts and reads down to about 0.01 gallons per minute, which buyers contrast with the turbine meters of older systems, and many call it better value than the best-known alternative. App pairing is described as quick, and a few owners who needed help describe quick, helpful support.

What to know before you buy

The LP365-P is an inline valve, so it is cut into the pipe, and owners advise using a plumber and adding a bypass line, which also gives you a way to keep water flowing if the unit ever fails. The brass adapters have no wrench flats, and one owner had a fitting drip until it was swapped. The app covers valve control, protection modes and usage graphs but some owners want more, such as day-to-day comparisons and alert tuning. It needs a plugged-in power adapter to connect to the app, though the internal battery keeps monitoring and shutoff alive when power drops. A few owners report a unit that leaked or a slow response from support, and one reports a persistent small leak reading with no leak found. Frizzlife does not say which Wi-Fi band it uses, and one owner had trouble joining a 2.4 GHz network. Support for Alexa, Google Home, Apple Home and Matter is not confirmed, while Home Assistant owners report using it. It carries no temperature sensor, so it cannot send freeze warnings, and it has no connector for wired or wireless leak sensors.

Is the Frizzlife LP365-P worth it?

For a whole-home shutoff with pressure monitoring, ultrasonic metering, an IP67 body and a battery that keeps shutoff working through an outage, it undercuts the name-brand systems, and owners say an insurer accepted it. Choose it for the price and the pressure data. Look elsewhere if you need confirmed voice-assistant or Matter support, freeze alerts or extra leak sensors on the same valve.

Frequently asked questions

Does the Frizzlife LP365-P keep working when the power goes out?

Yes. The manual says that unplugged it runs on its internal rechargeable battery, keeps monitoring water use and can still shut the valve automatically. It must be plugged in to connect to the app, so remote control depends on power and Wi-Fi. Frizzlife quotes up to 4 to 6 months of standby on a full charge.

What is the difference between the LP365 and the LP365-P?

The LP365 reports flow plus pipeline temperature and the LP365-P reports flow plus pipeline pressure. Everything else, including ultrasonic metering, automatic shutoff and app control, is the same. Because it has no temperature reading, the LP365-P cannot send freeze warnings.

What pipe sizes does the LP365-P fit?

The standard version has a 1 inch NPT body with 3/4 inch adapters included, and a separate 1-1/4 inch version covers 1-1/4 inch and 1 inch lines. Frizzlife recommends professional installation on the main supply line and, for a well, installing it after the pump.

Does the LP365-P work with Home Assistant?

Owners report integrating it into Home Assistant to plot usage and alert on high flow, through the same Tuya cloud account its app uses. Frizzlife does not list a dedicated integration. Alexa, Google Home, Apple Home, SmartThings and Matter support is not confirmed.

Can the LP365-P use extra leak sensors?

No. Frizzlife's wireless leak sensors are sold only with the separate LPG365 kit and are not compatible with the LP365 or LP365-P. This valve detects leaks from the flow and pressure it measures on the line.

How does the LP365-P detect a leak?

It measures flow with an ultrasonic sensor with a monitoring range of 0.001 to 18 GPM and flags abnormal flow, and it has an in-app leak test to run with every fixture off. When flow crosses the protection mode you choose it closes the valve and sends alerts, and a protection timer can pause monitoring during scheduled heavy use such as sprinklers.

At a glance

Summary

Everything this water shutoff valve supports, grouped by category.

Size & Materials
Weather Resistance (IP67)5.7 × 3.9 × 3.1 in (14.5 × 9.9 × 7.9 cm)3 lb (1.36 kg)
Power
WiredBattery Backup
Integrations
Home Assistant
Valve & Installation
Installation Type (Inline valve)Pipe Sizes (3/4", 1", 1-1/4")
Leak Protection
Flow SensorMicro-Leak TestOffline Auto Shutoff

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Company
Frizzlife logo

Frizzlife

4.5/ 5 avg ratingUnited States flagHeadquartered in United States

Frizzlife is an American water treatment brand, based in California, that sells under-sink and countertop reverse osmosis systems, whole-house filters, shower filters and smart water monitoring products. Its smart line pairs a leak and flow monitor with an automatic shutoff valve for the home's main water line, controlled from the Frizzlife app over Wi-Fi. Many of its filtration systems carry NSF/ANSI certifications, and the brand sells mainly through its own online store and Amazon.

Full specifications

Every spec, organized

Browse the full breakdown by category. Tap the on any row for what it means, or the for sources and documentation.

Size & Materials
Weather Resistance

IP67

The product page states an IP67 rating with a waterproof power cord and internal waterproof coating, for suitable outdoor or utility installations.

Dimensions

5.7 × 3.9 × 3.1 in (14.5 × 9.9 × 7.9 cm)

Amazon lists 5.7 in long x 3.9 in wide x 3.1 in high, the same figures Frizzlife prints on its installation diagram; the store's spec table rounds it to 5.5 x 4 x 3 in.

Weight

3 lb (1.36 kg)

Power
Wired

YES

Plugs into an AC outlet through a power adapter with a 6.5 ft cable; the unit must be plugged in to connect to the app.

Battery Type

Lithium-ion (rechargeable)

The store lists a lithium-ion battery cell; it is a rechargeable internal pack charged from the power adapter, not user-replaced cells.

Battery Life

6 months

Up to 4 to 6 months of standby on a full charge, depending on usage, network and environment.

Battery Backup

YES

When unplugged it runs on its internal battery, keeps monitoring water use and can still shut off the valve automatically; the app is only for remote control.

Connectivity
2.4 GHz WiFi

?

Frizzlife sells it as a Wi-Fi device paired through the Frizzlife app (or Smart Life) but does not publish which Wi-Fi band it uses.

Bluetooth

?

Z-Wave

NO

Zigbee

NO

Thread Protocol

NO

Other

NO

Integrations
Google Home

?

Alexa

?

Apple HomeKit

?

Samsung SmartThings

?

Home Assistant

YES

Frizzlife's own app and Smart Life both run on Tuya's cloud, and Home Assistant owners report reading the valve and flow data through it: Amazon reviewers say they integrated it into their Home Assistant setup and plot usage there. No Frizzlife-specific integration is listed.

Matter

?

Valve & Installation
Installation Type

Inline valve

Pipe Sizes

3/4", 1", 1-1/4"

The LP365-P is sold in a 1" NPT version that includes 3/4" adapters (1" & 3/4") and in a 1-1/4" version (1" & 1-1/4").

Motor Torque

-

Valve Exercise

?

Leak Protection
Flow Sensor

YES

Patented ultrasonic flow sensing with no moving parts, over a 0.001 to 18 GPM monitoring range, plus pipeline pressure on this version.

Micro-Leak Test

YES

Detects flow changes down to 0.01 GPM and has an in-app Leak Test that checks the line while every fixture is off.

Offline Auto Shutoff

YES

The manual says that even when unplugged it keeps monitoring and can shut off the valve automatically on its internal battery, with the app used only for remote control.

Wired Leak Sensor

NO

The LP365 has no leak sensor input; Frizzlife's wireless leak sensors are sold only with the separate LPG365 kit and are not compatible with the LP365.

Freeze Alerts

NO

The pressure version replaces the pipeline temperature reading with pressure, so it has no temperature data to warn about freezing.

Features
Automations

YES

Customized protection modes (auto or advanced) and a protection timer that pauses monitoring during scheduled heavy use such as irrigation; Amazon also lists linking with other smart devices.

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