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FloodStop

FloodStop Water Heater Auto-Shutoff Valve, FS3/4NPT, V4 Controller, Water Damage Prevention

    • Based on 268 reviews
Condition: New
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Availability: Only 5 left in stock, order soon!
Fulfilled by Amazon
Arrives May 1 – May 4
Order within 1 hour and 27 minutes
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Features

  • Auto-Shutoff Valve

Description

Auto-Shutoff Valve, FS3/4NPT, V4 Controller, Water Damage Prevention

Color: Gold


Brand: FloodStop


Sensor Technology: Water Sensor


UPC:


Manufacturer: Onsite Pro


Manufacturer: ‎Onsite Pro


Part Number: ‎FS3/4NPT v4


Item Weight: ‎1.92 pounds


Product Dimensions: ‎12 x 8 x 3 inches


Country of Origin: ‎China


Item model number: ‎FS3/4NPT v4


Is Discontinued By Manufacturer: ‎No


Size: ‎One Size


Color: ‎Gold


Style: ‎Valve


Material: ‎Wood


Thickness: ‎1 Miles


Item Package Quantity: ‎1


Measurement System: ‎US


Included Components: ‎FS3/4NPT


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: August 1, 2013


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: May 1 – May 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

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Top Amazon Reviews

    • Floodstop for water heater, 3/4" pipe
Style: Valve
My water heater burst at my old house, and it caused my garage ceiling to cave in from all the water pouring out. I was lucky the water heater wasn't located over the living area. Now I'm paranoid at my new house since the water heater is in the attic above two floors of living space. I installed the Floodstop shutoff valve on my water heater and put the water sensor in the pan at the bottom of the water heater. The electrical parts are sooo easy to connect. The hardest part will be connecting the pipes, so you might want to hire a plumber if that isn't your thing. I recommend screwing a few extra inches of pipe into the Floodstop and then soldering the pipes at that far end so the heat won't fry the electronics while you're installing it. The pipes get pretty dang hot during installation. Anyway, this thing works perfect. I tested it by dropping a single drop of water on the sensor, and the valve closed in under 2 seconds. If the water stays on the sensor, the alarm continues to sound. If you dry it off, the valve remains closed but the beeping stops. If you don't have any hot water, it clues you in that something must have triggered the shutoff valve and you can investigate. Every home that has a water heater over the living area should have one of these installed! Insurance rates would probably go down. ... show more
Reviewed in the United States on March 25, 2014 by C-L
    • Fantastic item, works well, and great manufacturer support
Style: Valve
Great product, and great customer service from the manufacturer when needed. You should always shut off your main water supply manually whenever you leave your property, even if just for a few days. Even so, this unit can prevent thousands of dollars of damage should a leak occur while the main is open. It doesn't take very long for water to create damage, even a small leak can create big damage in a short time. This devise has a great sensor, printed on both sides, and literally just takes a single drop of water to trip the alarm and close the valve. We use this for whole house protection with sensors near a filter housing and pressure tank, and it does a great job. Very satisfied. If I ever built a new house or renovated down to the studs (no plans to ever do either), I would make a point to run low voltage wire to every sink, toilet, and fixture (ice maker, dishwasher etc) so that I could place additional sensors for this unit under every single point where water could leak, thus signalling the unit to turn off water in the house. What an inexpensive way to protect from one of the biggest sources of damage to a home! ... show more
Reviewed in the United States on June 14, 2017 by Chris C.
    • Flood stop shuts the water off immediately and no monthly fee either
Style: Valve
I bought the FloodStop Water Heater Auto-Shutoff Valve, FS3/4NPT, V4 Controller, Water Damage Prevention two years ago for $125. I installed it where the water pipe comes into the house, just after the meter and before the water pipe branches are. I bought extra sensors to protect the water heater, clothes washer, dishwasher, refrigerator, and to the basement utility sink areas. A major leak anywhere else in the house will eventually run down to the basement by the utility sink. Possibly I may install sensors by each toilet some day. It’s now extremely easy to press the button to shut off the water if we are leaving for an extended period of time. The sensors are very sensitive. One drop of water, and the flood stop shuts the whole house water off. You need to locate and fix the problem, dry the sensor, and turn the water back on. Assuming you have an individual shut off at the offending site, you can turn the water back on for the rest of the house. I installed a flood stop bypass line with a normally closed valve if you need to turn the water back on, and don’t want to do the somewhat complicated procedure to the valve to manually turn the water back on before the sensor dries, or if the valve fails closed. A neighbor saw this and thought it would be a good idea for his winter house in Florida. He is looking at a “smart WiFi” leak sensor instead. I prefer the flood stop. The flood stop will turn the water off immediately and does not require a monthly subscription payment. The smart WiFi sensor notifies your phone. You must respond to shut the water off. The water leak will continue until you do. I prefer the flood stops immediate shut off and no monthly fee. ... show more
Reviewed in the United States on March 27, 2020 by Ed & Beth
    • Did its job! Well worth it.
Style: Valve
I had a 20-year-old 50-gallon water heater. I was nervous about it eventually leaking, and I did not want a flood. (I had a flood in January 2020 due to a leak under a sink that went undetected -- thousands of dollars of damage. Sadly NOT where I happened to have a leak detector. I now have Govee wireless leak detectors under every sink, toilet, refrigerator, dishwater, washer, and throughout the basement at my house.) I had a master plumber install this FloodStop. Didn't trust myself or loved ones to do it. A week ago, the old water heater started leaking. Floodstop did what it was supposed to do -- switched off the water. The Govee wireless leak detectors sent a message to my phone so that I was aware right away. I was able to prevent a flood and resulting damage. I recommend the FloodStop in tandem with Govee. Great combination. ... show more
Reviewed in the United States on October 25, 2020 by Heidi
    • Great idea, but control unit failed over the life of the unit.
Style: Valve
I purchased this unit to replace an old Floodstop valve when I was also replacing my water heater. Installation of the new valve went smoothly, although I agree with comments about the wires being a little short to both the valve and the sensor. I didn't want to lengthen them, so the control unit's placement isn't optimal. I also found that my valve came in the "off" position, so I had to power up the unit and open the valve before installing it, otherwise I wouldn't have had water flow to fill the new heater. The reason for the four-star rating is that I found that my old Floodstop control unit was dead. I had ordered this replacement because I was worried that the original (10-year old) Floodstop valve might have corroded up over the years, but I wasn't expecting the electronics to fail. Of course, the warranty is only for one year, but I'd prefer a warranty comparable to the life of water heaters (my old one was 10 years, my new one is 12, and I replace the in-house heater when the warranty is up, instead of waiting for a disaster to happen). ... show more
Reviewed in the United States on August 3, 2017 by David Bloom

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