Two Little Fishies ATL5450W Ball Valve for Regulating Water Flow, 5/8-Inch

Great quality for the price. I am using several of these to control water flow for 5/16 tubing in my old Fluval FX 5 canister filters that come with a flushing system on the bottom to empty the canisters and drain your tank that do not come with extra tubing. They are quite sturdy (I had my doubts about sturdiness before buying the first one) and after several months of use I feel this is an easy to use and holds up well. Great little valve.

I recently installed Two Little Fishes 1/2" ball valve on the intake of an aquarium filter so that I could use the filter in some smaller aquariums. In stock form, the water flow for the filter was not adjustable. By adding a ball valve to the output tube on this filter I am now able to reduce its water flow so that it can be used in my smaller aquariums. This ball valve is well constructed of heavy plastic and should last for years. I'll update my experiences with it. Thus far, highly recommended!

I put these on my tubing that run in and out from my aquarium to my external filter. I wanted a way to cut off water flow when moving around tubes so no more water pouring out unexpectedly. I did use small metal claps over each side connection, just in case. No leaks noted and they shut off water well as long as the pump is off.

I got this to control the intake on a pump I use to clean the debris from my display tank and sump. Works well so far. Only time will tell how long it lasts, but it is easy to adjust the valve. I would purchase it again, given it lasts a while.

Like a few other customers, I read this as a set of 2 valves from a company called "Little Fishies." I'm not stupid - perhaps a bit dyslexic - and all the other times I've purchased these valves they came in sets of 2. So if this is like the others I've purchased, I can say they're great. They fit a 5/8" hose (mine are on a garden drip system - check if you need this 16mm valve or the smaller 13mm version) and shut off completely. I'm using them to isolate different parts of my drip system so I can repair problems in one sector of the garden without broken hoses creating geysers anywhere else. It's expensive for a single valve...I wish the company really was just "Little Fishies" and they'd sent me two.

For low pressure applications these things are really nice. Higher pressure valves in this style, out of plastic, constrict the flow WAY too much....meaning if the plastic is thick enough to meet Schedule 40 specs the ID (inside diameter) of the pipe/valve will be tiny. These are perfect for aquariums and such, things like Eheim filter lines where the restriction would be devastatin to the system if using a husky Schedule 40 valve.

Picture is deceptive as it shows 3 valves and description below says "valves". This is for one valve. I rated 3 stars because they seem good quality but I needed 10 so needed to order more.

This is a perfect looking and functioning valve. The knob rotates easily with one hand and will not disturb your tubing. I’m extremely satisfied with purchasing this valve. I will be looking to purchase more in the future.

Suited for tubes with ID 16mm as discribed. This means the ID of the valve tule itself is less than 16mm.