2-inch Toilet Flush Valves Assembly Compatible with Water Ridge One Piece Toilets Fits for TOTO THU338N Dual Flush Drain Valve Repair Part Replacement

At first, I thought this unit wouldn’t work on my Toto one piece dual flush. It seemed to be made for a lid where the flush buttons were stacked front to back. I needed side by side. But upon further inspection I realized the top part of the unit can be locked down by rotating it in either direction. One does side by side, the other way does front to back.Works like a charm. Easy install.

Perfect fit

I built my own house and put in 3 Toto Aquia one piece toilets and 1 Toto Aquia two piece toilet. They look great, but I’ve been really disappointed in how they function right from the beginning. They have been prone to leaking and running constantly and just a huge disappointment considering how much I paid for them. I called Toto to complain about 2 of the 4 toilets, and they sent me free of charge, 2 new original TOTO THU338N, as replacements. They worked and resolved the leaking problem.It’s been almost 10 years, but a few months ago, that same leaking problem started, so I tried replacing the rubber gaskets and parts but nothing seemed to work so I bought this off brand product and replaced the whole assembly with it. It fits and works like the originalYes you can try replacing the gasket and other rubber parts that wear out over time that cost $10+ when you include the shipping, but for $25 for the whole assembly, with all the rubber parts, it’s really the better way to go.Save yourself the hassle and just buy and replace the whole assembly from the beginning.I’m going to buy a couple more just to have, who knows what they will cost in the future.

It was had to find good info on the web, but I took a chance and it paid off, this fit my Swiss Madison 1 piece toilet perfectly and solved my running toilet problem. at this price I should buy another and store it for future replacement

Great product and very easy to install. I wish I had purchased it couple months earlier

I have an older dual flush water ridge toilet from Costco and water ridge does not make the replacement flush valve assembly or even just the flush valve anymore. This was perfect . I did not need to replace the whole assembly just the dual flush valve that is blue/yellow. You turn the flush valve to lock into position on the existing assembly. I don’t know how long this will last as I just did this today . I wouldn’t buy dual flush toilets anymore . I prefer to have a standard toilet , just makes it easier to find simple parts at the local hardware stores.

I replaced the flush valve with a BQLZR White Toilet Cistern Dual Flush Push Button Valve 25cm Height Fit for Drain Diameter 65-75mm eighteen months ago. After about a year the button on the flush valve intermittently got stuck and left the valve wide open. I just replaced the valve with this one and it seems to work much better. It was easy to install and has less resistance when you push down on the buttons.

The valve holds water in the tank but there's no seal between the tank and the toilet, so that every time you flush water pours out the back onto the floor. You can't use the old seal because there's nothing to attach it to. The instructions, if you could call them that, refer to a different part number, B4900-G, which looks like it has a nut which could accomodate a seal, but who knows? I'll have to try to track down the Toto OEM part.