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🔐 Lock your water, unlock peace of mind.
The Flow Security Systems Faucet Lock II is a corrosion-resistant, patented locking device designed to secure ¾ inch outdoor hose bibbs against unauthorized use, vandalism, and water theft. Featuring a unique free-spinning mechanism and magnetic keys, it installs tool-free in seconds and promotes water conservation by preventing leaks and drips. Ideal for residential, commercial, and institutional settings, it comes keyed alike in an 8-pack for streamlined access control.








| ASIN | B076PW8YPH |
| Additional Features | corrosion resistant |
| Best Sellers Rank | #41,984 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #29 in Outdoor Faucets |
| Brand | Flow Security Systems |
| Brand Name | Flow Security Systems |
| Color | Green |
| Control Method | Touch |
| Controller Type | Hand Control |
| Customer Reviews | 4.1 out of 5 stars 1,200 Reviews |
| Finish Types | Powder Coated |
| Included Components | Sixteen keys and instructions included |
| Item Dimensions | 1.75 x 1.75 x 1.25 inches |
| Item dimensions L x W x H | 1.75 x 1.75 x 1.25 inches |
| Lock Type | Key Lock |
| Manufacturer | Flow Security Systems, Inc. |
| Manufacturer Part Number | FSS-500-QTY8 |
| Material | Zinc |
| Material Type | Zinc |
| Model Name | Faucet Lock II |
| Model Number | FSS-500-QTY8 |
| Number of Pieces | 1 |
| Recommended Uses For Product | prevent unauthorised water use |
| Shape | Round |
| Special Feature | corrosion resistant |
| Style Name | Keyed the Same - 8 Pack |
| UPC | 711583228438 |
| Unit Count | 8.0 Count |
M**B
Flow Security Systems...Lock it down!
Our work facility has several hose bibs around the building. Unfortunately, we have had issues with people randomly using our water and not shutting the valves off completely. I found these little beauties on Amazon and they did the trick. Easy to install, just follow the directions. The key slides into the cover and allows you to fasten the fitting to the threaded nozzle. Take the key out and the cap will not unscrew. Genius! I'm getting a couple more for my own use. It works like a charm.
S**P
Inventive gadget, great company
So, I might not know JUST HOW GREAT these things are if I hadn't spoken to the owner of the company today, who phoned me personally at home on a Saturday after receiving a distraught complaint message that my two locks were defective. I had looked up the company through my Amazon order and sent the message, after which I saw that they have a customer service number I could call M-F. The company owner called directly from his personal cell and talked me through a little work-around that got them working again. So, how do they work and not work? Magnets! Once these fit onto the hose bibb (with your key inside) you hear and feel a sort of click into place. Then you remove your key (containing a magnet), and your precious water is on serious lockdown from thieves. Once you need to access your water, you simply insert the key and start unscrewing. My hiccup today was that the lock kept turning in place rather than unscrewing, which is exactly what it does for the people you want to keep out, and what you want it to do to them. But when your magic key is in there, you want it to come off. Apparently a couple of taps on the locking device itself helps tap the "sleeping" magnet back into place, because it worked on both locks that were jammed up. The gracious owner still offered to let me return these in exchange for the brass version with a traditional key at no extra charge. He explained that the brass ones are more costly to make, which is why they are more, and that w/o regular maintenance like WD40 they could fail from corrosion. But that the magnets should last with no maintenance at all, which is how they came to be invented. And they're cheaper to make because the parts are less than brass. Fascinating! Even with the hiccup today I opted to take the leap of faith on the magnets, because I just love the innovative technology. I think if you've checked the listing you can see you can order as many as you want all keyed the same (one key = multiple locks) or keyed differently, but that is a nice bonus for those of us who like it simple. The keys are lightweight and plastic and just plain bizarre. The locks themselves are very heavy and feel sturdy and well made. It seems that the occasional one might fail or be a lemon, but rarely, and if so, it sure seems this company will more than take care of you. I've never gotten service like that EVER. It's rumored the world was like this back in the '50s, but I'm an unfortunate product of mega-corps and phone tree robots that never get a human on the line. I was really blown away by this level of service.
G**Y
These are a massive UPGRADE from the orange version
If you have the orange version of the Flow Security Systems Faucet Locks , this is a massive UPGRADE to those. These have metal threaded inserts. I wished I had known they upgraded the locks. I would have swapped all of the units on the property to these.
K**3
Will not last long
I installed 8 of these on rental units. Easy to install. Tested it and it locked and unlocked as expected. Seemed like a good solution. Problem is after about 6 months they no longer unlock... put the key in and the head just spins and spins. I tried multiple of the right number keys and none worked. I used a small screwdriver to pop off the lock ring and removed the lock. I could see dirt/grime/mildew around the magnet in the lock, preventing it from moving, and of course unlocking. Obviously there is not a sufficient seal to prevent the elements from contaminating the innards of the lock, which over time rends it useless. Buy only if you never want to remove because after awhile you won't be able to remove it except by destroying it.
S**T
Quality locks that will last
Purchased a few of these magnetic hose bibb/faucet locks to secure my garden faucets. These locks are made of powder coated aluminum, made to last a very long time, will not rust. The magnets that are used inside are the extremely powerful and permanent, rare earth magnets. Each lock comes with two magnetic keys; keys have magnets encased inside plastic sheath for durability and protection. When the magnetic/plastic key is inserted into the side of the FaucetLock II key hole, the magnetic key triggers the earth magnets inside the lock to join the free spinning thread part to the outside powder coated casing, thus allowing the entire lock to rotate to lock/unlock onto the thread of the faucet. Without the key, the aluminum internal female thread stays secure to the hose bibb male thread, while the outside powder coated casing spins freely. There's a rubber stopper at the bottom of the lock that seals in the water from the faucet. Once the lock is hand tightened to the hose bibb, not a single drop of water will come out even with the faucet turned all the way to full. I can rest knowing nobody will take my water without me knowing! I also like the smooth look of these faucet locks, blending in with my garden. It's so small and cleverly designed, it looks like it's not a lock when looking from a distance. Only fault I found was the key holes were a little sharp on the edges, may cut the fingers of little kids playing with it if they're not careful. I filed the edges of the key hole down to taper them. Need to taper the edges for future locks that are sold.
S**C
Prevents utility theft
Will prevent unwanted use of faucet. Water will not flow if the lock is installed. The magnetic key is easy to use/install/remove. Only issue (no fault of the product) is if your municipal water has high mineral build up like mines. The deposits will build up over time that might lead to a seize up.
S**.
Good Product - Great Customer Service
I bought this Water Lock three years ago in 2020. It protected the outdoor faucet at my condo from others that were turning the water and leaving it running. Easy to install / uninstall. Last week, the lock would no longer stay locked. I reached out to the company and Mark, president of the company, responded to my email and is sending me a new lock. That is great customer service! This is a great product to keep others from wasting water and charging you for their bad behavior.
T**R
50% Failure Rate / Excellent customer support
One works (so far) while the other rotates freely even with the magnetic key inserted. In other words, it's stuck on the bib. Tapping doesn't do anything except knock chips out of the plastic shell. I used the support form on the company's website to ask for help and promptly received an email inviting me to call its founder (!), who quickly sorted me out. Per his instructions I was able to remove the device without resorting to power tools.
M**U
Fácil de usar
Me sirvió mucho. Fácil de instalar.
F**A
Me funcionaron perfectamente
Estuve fuera de casa durante algunos días, por lo que consideré conveniente asegurar dos llaves de agua ubicadas en el exterior. El producto fue una buena solución al respecto. Al colocar los candados probé su funcionamiento y quedé satisfecho. Cuando días más tarde los desmonté, lo cual no me representó ningún problema, advertí algo de oxidación en la cuerda (rosca). Debo aclarar que el agua que recibo tiene una alta concentración de sales. Dada esta situación, antes de guardar los candados hasta su próximo uso, limpié la cuerda con un cepillo de plástico rígido y expulsé los residuos removidos con aire a presión.
M**.
Si funciona
Lo que no me gustó no trae instructivo de uso Me gustó porque cumple las espectativas para lo que necesito .
J**N
Great!
if they are to go on an exterior tap which has a metal box, the front may not close. But otherwise they are so easy to use, and great at locking the water access up. They are very heavy too, just fyi.
A**N
Excellent
Excellent
Trustpilot
1 day ago
2 months ago