Grohe 46138000 1/2 in. Quick Coupling, one-size

The part was exactly what I needed

Youll know when you need a new one. When you do, this product makes solving the problem very easy. Installation was as described and straightforward. Be certain to shop around -- Grohe parts are not as readily available as other brands -- and if you do so, you can save a considerable amount of money.

Local home depot didnt have it in stock. Fortunately Amazon to the rescure. 2 days later it arrives, inscrew the old one, screw in the new one and snap in, done. Good as new. These are color coded bu size so make sure you get one with the same color to replace your old one.

My faucet, which had the Yellow Grohe Quick Coupling, broke about one centimeter below the orange band, which resulted in water spraying all over the inside of my sink when I turned on the faucet. Evidently, this is a design issue with this coupling and it is notorious for failing around the 5 to 7 yrs after installation (from what I read online). The part was very easy to disconnect and I ordered a replacement yellow disconnect immediately. However, in looking on-line I saw other Grohe quick couplings and could not find out any information regarding the difference between the yellow and green Quick Couplings or their specifications except the yellow was for Faucets manufactured before 2005 and the green was for 2005 and later faucets. So I dug a little deeper and found a parts supply website I asked the following questions regarding the difference between the green and the yellow quick coupling to a Grohe part supplier: Is there a difference between the Grohe Yellow Quick Coupling (#46 138) and the Grohe Green Quick Coupling (#46 315). That is, are they interchangeable? Or is there a difference in the amount of water they allow to flow through them? Or is it only that the green is a newer quick coupling redesigned to fix a design flaw with the yellow coupling (which is notorious for breaking in 5 to 6 years)? The response I got was the following: Thank you for your question! The Grohe 46 138 is the older version of the Grohe Green Quick Coupling (46 315). These are interchangeable, so you can use either one. Noting that you are aware of a particular design flaw on the 46 138, I would advise using the 46 315 just to make sure you are getting the newest available part. I actually bought both parts, and the yellow is slightly longer (which does not affect the functionality of the connector from anything I can detect, but that could be what causes it to be weaker). So a long story short, I purchased the green quick coupling (which costs a few dollars more) and installed it. It installed easily and I have had no issues with it leaking and all seems to be working fine with it. I cannot say whether it is a better part yet, but I am betting that the shorter design has made is structurally more sound and I am hoping that it will not fail as quickly as the yellow coupling did. Regardless of the above, given a part like this that is subject to constant movement over the years, I would have expected Grohe to make it out of more lasting material (i.e., metal) that would not break during the faucets normal life span. It is not the cost of the faucet or the replacement part that is the issue but the damage to my cabinet and flooring from the water that built up and seeped through the floor that is the bigger issue. Grohe should be embarrassed by this, as it does not live up to the expected standards for which I believed Grohe was manufactured. In the future, if I purchase another Grohe faucet, I will look to see what parts are plastic and if they still have this quick coupling made of a material that will not last then I will move on to a better faucet. It is not worth risking the thousands of dollars in dammage that can easily occur from a faucet that pours water into you cabinets.

Bought a new Grohe kitchen faucet and the flow was so limited the sprayer would not work and it took waaaaay too long to even fill a pot with water. You couldnt even rinse the sink out the pressure was so weak. Did some research on the flow restrictor for our model and bought this coupling to replace the red coupling that restricts flow to 1.75 gpm (I think - might be 1.5?) Problem solved! The pressure is actually so strong you have to get used not turning it on all the way. You have to go under the sink to replace it because it is on the end of the hose where it connects to the body of the faucet, not up at the handle end. Once you get under there and find it, it takes about 30 seconds to replace it. It is kind of irritating that it costs what it costs since it is just a piece of plastic tubing with one threaded end and one push/pull snap connector on the other. But it saved me from years of frustration with a ridiculously low water flow.

It fits. I hope the new plastic screw in part lasts. The old one disintegrated and the tubing fell off.

Thankfully had water sensor under kitchen sink. Discovered that this part (about 20yrs old kitchen faucet) was spraying water. Found it on Amazon at great price - nowhere else had in stock. Ordered Friday night and was delivered Sunday afternoon. Saved probably $400 versus plumber visit. One note -when i initially removed this part, i had to slide down yellow lock part, and then really pull hard to yank it off the faucet part. And on install, quickconnect needs to be held down with one hand while pushed up hard with other hand to lock onto the metal part that comes down from the faucet. My first replacement attempt it leaked since it had not snapped into place. Hard to get leverage under sink to do this. I should have know it wasnt snapped since it went in too easy. Needs some force - listen and feel for that satisfying snap.

This is a direct replacement for the GROHE hose at the base of the hose where it attaches to the faucet. It fits and is really easy to replace ( it takes about 2 minutes to do it) but it seems that I have to replace it every year. I attached 2 photos. The part on the right is the original GROHE part . The one on the left is the replacement I bought last year. Now I had to buy another one because theO ring failed and leaked water all over the inside of my cabinet. You can easily see that the replacement part is much lighter duty than the original. But it does the job just as well as the original. The reason for the 3 star rating is because I need to replace this part every year. I guess its just a bad design or something. I paid nearly 50 something bucks for this thing. Its way over priced but I couldnt find it any cheaper anywhere else. So, yes it works but it only lasts about a year or so. Keep in mind, this is for the sink I have on my 42 foot Carver yacht. So it isnt like the sink is getting used for the entire year. I pull the boat out for the winter every October then it gets put back in the following April. So its only getting used for about 6 months. Yes, i would buy it again but only because Id have to replace the entire faucet with a more expensive type and brand to fix this issue for longer than a year. The manufacturers part is harder to find so this replacement will have to do. There are 3 types of these and they differ by pressure rating I believe. They are different colors. This yellow one is for the highest pressure. So, if your in a position like I am, then yes, go ahead and buy it but I think next year I am just going to replace the whole faucet with another brand because this is getting annoying replacing this thing every year. And, its eventually going to destroy my cabinet from water damage when it fails again.

Easy to use and a big improvement for the original connections