Cunhill Boat Engine Flush Mixer Liquid Flow Valve for Salt Remover Solution Ideal to Flush Outboard and Inboard Engines Connects with Garden Hose, Spray Nozzle, Engine Flusher

All of these leak a little bit. Doesn't matter what brand you try. Might as well get the cheaper ones. I have a spare as well.

It works great. The quick connect suck kept leaking so remove it

Works great no leakage

Wish I could give it no stars. Leaks awful. No matter what I do it will not seal to a hose. Very very poor quality. Missed the return window so I’m throwing it out.

Just received my sprayer and it leaked at my hose connection to sprayer so I simply added another rubber washer to female connector to my hose and fixed the leaking now sprayer works great!

We bought this to use with our salt away product when rinsing our boat. We've used about 5 times now and haven't had any issues with leaking. Compared to other similar products I'm glad we purchased this due to the affordable price and because it seems to be holding up fine.

Last season I order Salt Away to use on my boat and it came with a mixer liquid valve. Unfortunately I forgot to empty it out and take it out of the boat before winter storage. You guessed it it froze and got a Crack in the bottom. I couldn't find a replacement exactly like that one so I bought this one, it works don't get me wrong it's just a lot small then my first one and not as good quality.

As others noted, this is a cheap option to flush a boat engine. However, my buddy bought the more expensive one and even that thing leaked just like this one...yet 3 times the cost. These are all cheap plastic with mediocre seals but, honestly, you are connecting a hose to flush the engine so as long as water is flowing fine and pushing the flush canister liquid through it is good. Water is going everywhere anyway so just be a little more careful not to have it soak your leg. I don't use it on washing down my boat but the same thing...you are washing your boat so if water leaks I am not really sure that is an issue...minus getting you a little wet. I say give it a shot and save the money from the other ones since the first time you drop any on concrete you will be buying a new one.