Beware the fittings are 1/2 inch and if you have ...
358697
Beware the fittings are 1/2 inch and if you have 3/16 in the wall your gonna have to rig it up.
4860438
I ordered two of these to put a UV filter into my pond fountain system.  First the pros.  A 1" hose fit on it quite well.  The adapter seemed sturdy, and that is about it.  Now the cons.  Others have said that the adapter will not fit well on a 1 1/2" hose.  I found out that it will not fit on a 3/4" hose.  Looking at the package it lists the minimum size as 20 mm which is slightly larger than 3/4", enough to keep the hose from sliding on without being permanently stretched.  The packages also appeared to have been opened despite the item being sold as new.  But after my experience with them I suspect they had been returned by another customer.  Overall I would recommend avoiding this product unless you have tried a few other options first and had them fail.
4751964
Fittings are not attached as shown in Amazons picture of this item.  Made in China not USA.
159750
Couldn't use my own 1/4" attachments on the front. Returned to buy a different product.
1027996
It did fit up well except it was 1 1/2" short of contacting the cat. converter, so I had to get an extension pipe to complete the install. The pipe needed to be 3 1/2" longer
4236560
doesn't fit a standard shower 1/2 npt ... I bought a stainless steel 1/2 NPT 12" pipe that did the job perfect. I missed the window to return. Amazon sucks in that regard.
654523
The ties were too small to use around 3" piping (without doubling up), luckily I had some longer ties leftover from something else I ordered.
The ties that are included may work on 2.5" pipe though.
2200276
Had to return did not fit my socket drive. Okay if you have a 1/2 inch set.
2468930
They are too small diameter to use on most garden hose connections.
380736
These are 1/2" OD (outer diameter) not ID (inner)! No where was this information listed, except on the bag when I received it. This would've been very helpful information. I needed these for 1/2" rigid copper valves, and for that you will need ID. They assume you need these for tubing, which is measured in OD.
2866480
This is an excellent hose.  It's very flexible and the long length means you don't have to drag the vac around as much.  BEWARE...the fitting end of the hose is 1-1/2", not the standard 1-1/4".  The fittings that came with your shop vac probably won't fit!  Don't buy Mr. Nozzle's brush or extension tubes thinking that they will fit Mr. Nozzle hose.  They don't!  That's right, some of the fittings they sell don't fit their own hose.  If you want to use your existing 1-1/4" fittings, buy the Mr. Nozzle 1-1/2" to 1-1/4" adapter (part #17).  The hose by itself is 5 stars, but the #@!%$ goofy size makes it only 3 stars.
2234900
This coupling attached so firmly to fittings that I pulled 2 fittings out of threaded sockets when removing the coupling. Beware if your fittings are set in aluminum.
3138956
This is a nice RV sewer hose kit, but be aware that because of the end fittings it may be too big to fit inside your bumper storage or 4 inch diameter sewer storage tube. Be sure to measure before you buy!
686473
Works on 2" steam pipes, not just the recommended 1"
2302633
Inverted flare fittings, other type of fitting is 1/4" npt.  Change your pigtails at same time you change your regulator.
3045502
This system is NOT 2-1/2" as the product features states; it's 2".  You will need to get the&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Shop-vac-906-87-19-Universal-Tool-Adapter/dp/B00004RHKU/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Shop-vac 906-87-19 Universal Tool Adapter</a>&nbsp;to connect it to a 2=1/2" system. I opted to return it and get the parts I needed from Peachtree Woodworking available here on Amazon.
2557031
i got mine and could not connect it to my sink faucet.
the faucet i have uses a 13/16" diameter airater with 27 thread (13/16-27 threads) however the water changer requires a 15/16" diameter airater.

luckily the home depot sells adapters to go between the different faucet sizes. i could not get one adapter to go immediately from  13/16-27 to 15/16-27 however i was able to build one out of two adapters.

the first adapter goes from my 13/16-17 airater to a 55/64-27 connector. i then used a 55/64-27 to garden hose adapter. this allows me to not even need the aqueon 06093 adapter but goes right into the aqueon valve assembly.

now that i have the water changer properly connected to my faucet, it works wonderfully. some people complained of wasting water during its operation. once i have a stable vacuum i turn off my faucet and the water changer still sucks water just fine. it can drain quite fast but is very easy to control the water flow.

great product that makes changing water in a large tank the easiest chore i do around the house.

it would have been nice if aqueon would supply several different faucet adapters already in the box so the customer only has to choose the one that fits their needs. i am not going to remove a star since the 15/16-27 threading the changer comes with is the most common "standard" side fitting.