I was watching Ask This Old House and they demonstrated a little chrome in-line device that was used wherever a flexible hose was installed. It went on the end of the hose and if the hose burst the water pressure would cause it to close. What is that called?

Thanks.

Junk, don't use them. Protecting a braided stainlees steel supply line is overkill. I have seen nothing but problems with these devices, either no flow or the little check valve leaks before the supply causing the exact problem the device was supposed to protect against.

Flood-Safe Connectors and I will not supply/install them for my customers.


Too sensitive to pressure fluctuations that require constant removal to reset their protective feature.


Home Depot is losing sales drastically from the shrink created by their use, meaning the majority get returned and forces the customer to go to the other big box store to get non-valved type.


Some things are just left better alone.

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Everything in Plumbing can be repaired or replaced.

The hose it is protecting will never burst. However the connection between the compression nut that screws onto the supply valve and the floodsafe valve has failed in many cases causing a flood that the valve failed to protect against because the protection valve is what blew off. The valve is also subject to trips triggered by high water pressure and even sudden openings of a valve that is fast acting. I'm in full agreement that they are junk and an unnecessary gimick.

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I get the message guys. Thanks.

Maybe they pushed it because HD is a big sponsor of the show...

Insurance companies favor these so-called flood-safe connectors, but as you have seen from previous comments, the technology may not be fully developed yet.

It is called a "nuisance" by anyone who has ever used them. The manufacturer calls the "Flood Safe" or whatever his trade name is, and they are usually integral with the supply line, not an add on. They are a nuisance because if you turn on the valve too quickly they will actuate and then you have to turn off the water, unscrew the device from the valve to reset it and then assemble it again. Then turn on the water slowly. If the faucet or toilet has a high flow, that will also actuate it and shut off the water.

around here they call it a thing a ma gig