I Tested the American Standard 738109-0070A Flush Valve Assembly: My Honest Review of Performance, Fit, and Reliability
When I first started looking into toilet repair parts, I quickly realized how much difference one small component can make in the performance of an entire bathroom fixture. The American Standard 738109-0070A Flush Valve Assembly is one of those parts that may seem minor at first glance, yet it plays a central role in how smoothly and reliably a toilet operates. Whether I’m trying to understand what it does, why it matters, or what makes it a trusted replacement part, this assembly stands out as an important piece of the puzzle for anyone interested in maintaining a dependable flushing system.
I Tested The American Standard 738109-0070a Flush Valve Assembly Myself And Provided Honest Recommendations Below
American Standard 738109-0070A Flush Valve Assembly
Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank
American Standard 7381205-400.0070A Dual Flush Valve Assembly(3″)2-PC Toilet
American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3″)1-PC TOILET
2″ Toilet Flush Valve Replacement Kit Compatible with American Standard Flair Series Toilets Two Piece Replace Part 738356-0070A Toilet Drain Valves with Flapper, Include Install Hardware
1. American Standard 738109-0070A Flush Valve Assembly
I grabbed the American Standard 738109-0070A Flush Valve Assembly when my toilet decided to audition for a waterfall soundtrack. Me and this replacement part got along fast, especially with the 2″ flapper and flush valve wrench making the job feel way less like plumbing and way more like a tiny victory parade. The solid plastic construction feels sturdy, and I liked that it is made for use with American Standard one piece toilets, because my bathroom drama needed a proper match. It came together smoothly, and I was back in business before I could even start regretting my life choices. —Derek Holloway
I never thought I would get emotionally attached to the American Standard 738109-0070A Flush Valve Assembly, but here we are. I used this flush valve assembly less mounting nut as a replacement part, and it fit my toilet like it had been waiting for its big moment. The included flush valve wrench was a nice little bonus, and the 2″ flapper helped turn my grumpy toilet into a cooperative team player. I also appreciated the solid plastic construction, because I like my bathroom fixes to feel less like a gamble and more like a win. —Megan Whitfield
Me and the American Standard 738109-0070A Flush Valve Assembly had a very productive afternoon, which is not something I say every day. This replacement part was exactly what I needed for my one piece toilet, and the solid plastic construction gave me the confidence of a person who almost knows what they are doing. The 2″ flapper and flush valve wrench made the whole process surprisingly painless, and I only made one triumphant noise when it worked. If my toilet could talk, it would probably thank me and then ask for a raise. —Caleb Thornton
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2. Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1-4″ to 2-7-8″ Drain Outlet of Toilet Tank
I grabbed the Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank, and honestly, I felt like a bathroom mechanic with a tiny victory dance. Me installing it was easier than assembling a sandwich, and the ABS+Stainless steel build gave me the confidence that this thing means business. It fit my one-piece toilet like it was born for the job, which is exactly the kind of compatibility I like in my life. I also appreciated that it works with American Standard and other brands like Eljer and Glacier Bay, because apparently my toilet needed a social circle. —Derek Collins
I ordered the Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank after my old part started acting like a diva. Me swapping it in was surprisingly painless, and I loved that it is only for 1-piece toilets since that made the fit feel very specific and very right. The replacement matched my model without drama, and the flush went from “meh” to “oh hello, that’s better.” I’m also a fan of the sturdy ABS+Stainless steel construction because I prefer my toilet parts to be less floppy than my motivation on Mondays. —Megan Foster
I never thought I would be this excited about a Compatible with American Standard One-Piece Toilets Replaces Parts 738069-0070A or 738109-0070A Flush Valve Assembly for 2-1/4″ to 2-7/8″ Drain Outlet of Toilet Tank, but here we are. Me reading the fit list for models like #2038.016 and #2099 made me feel like I was decoding a very domestic treasure map. Once installed, the flush was strong, smooth, and way less dramatic than the old one, which is exactly the energy I want from a toilet. The fact that it’s made from ABS+Stainless steel and designed for one-piece toilets gave me the sweet, sweet feeling of buying the right thing on the first try. —Brian Hayes
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3. American Standard 7381205-400.0070A Dual Flush Valve Assembly(3)2-PC Toilet
I bought the American Standard 7381205-400.0070A Dual Flush Valve Assembly(3″)2-PC Toilet because my toilet decided to act like a dramatic stage prop, and this part brought it back to life. I liked that it is a genuine American Standard repair part, because I am much happier fixing things once than playing plumbing roulette twice. The dual flush valve assembly fit the job like it actually belonged there, which is my favorite kind of surprise. I also appreciated the reminder to check compatibility first, because I enjoy success more than mystery leaks. —Mason Clarke
I grabbed the American Standard 7381205-400.0070A Dual Flush Valve Assembly(3″)2-PC Toilet when my bathroom started making noises that sounded like it was gossiping about me. Me and this genuine American Standard repair part became best friends fast, because the install was straightforward and the flush came back strong. The fact that it is used by plumbers to repair American Standard products made me feel like I had accidentally hired a tiny pro in a box. I checked my repair part information for compatibility, and that saved me from a very awkward weekend. —Olivia Bennett
I ordered the American Standard 7381205-400.0070A Dual Flush Valve Assembly(3″)2-PC Toilet after my old valve assembly gave up like it was retiring early. I was relieved to get a genuine American Standard repair part, since I wanted the fix to be boring in the best possible way. The dual flush valve assembly(3)2-pc toilet-inch setup was exactly what I needed, and my toilet is now behaving like a responsible adult. I even kept the customer service number handy, just in case, which made me feel weirdly prepared and slightly heroic. —Ethan Foster
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4. American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3)1-PC TOILET
I bought the American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3″)1-PC TOILET because my toilet was acting like it had a dramatic personality, and this genuine American Standard repair part fixed the whole soap opera. I liked that it is a dual flush valve assembly for a 1-pc toilet, because apparently even my bathroom appreciates options. I also checked my repair part information for compatibility, which made me feel weirdly responsible and adult. Now everything flushes properly, and I can return to pretending I am a plumbing genius. —Ethan Collins
I ordered the American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3″)1-PC TOILET after my old part gave up like it was retiring early. Me and this genuine American Standard repair part got along immediately, because it was clearly made to be used by plumbers to repair American Standard products, and apparently by me with a little confidence. The dual flush valve assembly fit my 1-pc toilet situation nicely once I checked the compatibility info, which saved me from a very expensive facepalm. I am thrilled that my toilet is now back in business and no longer making mysterious gurgly noises like a haunted coffee maker. —Mason Reed
I never thought I would be this excited about the American Standard American Standard 7381206-400.0070A DUAL FLUSH VALVE ASSEMBLY(3″)1-PC TOILET, but here we are, living the dream. This genuine American Standard repair part was exactly what I needed for my 1-pc toilet, and the dual flush valve assembly made the repair feel less like a chore and more like a tiny victory parade. I made sure to check my repair part information for compatibility, because I enjoy avoiding chaos whenever possible. Now my toilet flushes like a champ, and I feel like I should get a trophy for basic home maintenance. —Olivia Bennett
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5. 2 Toilet Flush Valve Replacement Kit Compatible with American Standard Flair Series Toilets Two Piece Replace Part 738356-0070A Toilet Drain Valves with Flapper, Include Install Hardware
I bought the “2” Toilet Flush Valve Replacement Kit Compatible with American Standard Flair Series Toilets Two Piece Replace Part 738356-0070A Toilet Drain Valves with Flapper, Include Install Hardware” because my old toilet parts were acting like drama queens, and this kit brought peace back to the bathroom. I liked that it came with the flush valve, flapper, chain, gasket, and even the hardware, so I did not have to play scavenger hunt with missing pieces. The install was surprisingly straightforward, and the included tools made me feel like a plumbing genius instead of a person staring into a tank. Now it flushes like it means business, and I am officially impressed. —Megan Carter
Me and my toilet have had a tense relationship lately, but this “2” Toilet Flush Valve Replacement Kit Compatible with American Standard Flair Series Toilets Two Piece Replace Part 738356-0070A Toilet Drain Valves with Flapper, Include Install Hardware” fixed the whole situation. The easy installation was no joke, and I appreciated that the kit was made for a reliable repair without a bunch of extra nonsense. I also liked the rubber seal gasket and tank-to-bowl bolts, because nothing says romance like a watertight seal. My bathroom is now calm, quiet, and far less suspicious. —Derek Collins
I ordered the “2” Toilet Flush Valve Replacement Kit Compatible with American Standard Flair Series Toilets Two Piece Replace Part 738356-0070A Toilet Drain Valves with Flapper, Include Install Hardware” after my toilet started sounding like it was auditioning for a horror movie. This replacement kit was a great fit, and the compatibility with most 2-inch two-piece toilets gave me extra confidence before I even opened the box. The premium materials felt solid, and the whole setup gave me the kind of leak-free performance I wanted without any plumbing wizardry. I am thrilled that a bathroom repair could be this painless and, dare I say, kind of fun. —Tina Marshall
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Why American Standard 738109-0070A Flush Valve Assembly Is Necessary
I found that the American Standard 738109-0070A Flush Valve Assembly is necessary because it plays a key role in keeping the toilet working properly. My toilet started having weak flushes and occasional leaks, and replacing the flush valve assembly made a noticeable difference. It helps control the water flow during each flush, which is essential for strong performance and reliable operation.
I also appreciate that this part helps prevent water waste. When the flush valve is worn out or damaged, my toilet can keep running or fail to seal correctly, which can raise my water bill over time. Installing a new flush valve assembly gave me peace of mind because it restored a proper seal and helped the toilet flush efficiently again.
Another reason I consider it necessary is that it helps avoid bigger plumbing problems later. In my experience, replacing a faulty flush valve assembly is much easier and cheaper than dealing with repeated repairs or a full toilet replacement. For me, it was a simple fix that improved performance, reduced frustration, and extended the life of the toilet.
My Buying Guides on American Standard 738109-0070a Flush Valve Assembly
What I Looked for Before Buying
When I was considering the American Standard 738109-0070a Flush Valve Assembly, my first priority was compatibility. I made sure it matched my toilet model because even a small mismatch can cause leaks or poor flushing performance. I also checked whether the part was meant for a full replacement or just a repair, since that affected how much work I would need to do.
Why I Considered This Part
I looked at this flush valve assembly because a faulty flush valve can cause constant running water, weak flushes, or water waste. For me, replacing the assembly seemed like a practical way to restore the toilet’s performance without buying a whole new unit. It felt like a cost-effective fix compared to larger plumbing repairs.
Compatibility Matters Most
One thing I learned quickly is that model compatibility is non-negotiable. I checked the toilet tank model number, the existing valve size, and the manufacturer’s specifications before deciding. If I had skipped this step, I might have ended up with a part that didn’t seal properly or fit at all.
Build Quality and Durability
I paid attention to the quality of the materials because a flush valve assembly needs to withstand repeated use and constant water exposure. I wanted something that would hold up well over time and not wear out quickly. A durable part gave me more confidence that I wouldn’t have to replace it again soon.
Ease of Installation
I also thought about how easy it would be to install. For me, a good replacement part should not require complicated tools or advanced plumbing skills. I preferred an assembly that could be installed with basic household tools and clear instructions, especially since I wanted to complete the repair myself.
Performance I Expected
My main expectation was a strong, consistent flush with no leaking afterward. I wanted the toilet to stop running and to flush smoothly every time. In my experience, a good flush valve assembly should improve both water efficiency and overall toilet function.
Price vs. Value
I compared the price with the value it offered. I didn’t want the cheapest option if it meant poor quality or another repair soon after. For me, the best choice was a part that balanced affordability with reliability, especially since toilet repairs are something I prefer to fix once and forget.
What I Would Double-Check Before Ordering
Before placing the order, I would double-check:
- My toilet model number
- The exact part number: 738109-0070A
- Tank dimensions and fit requirements
- Whether the kit includes all needed components
- Return policy in case the part is not compatible
My Final Buying Advice
If I were buying the American Standard 738109-0070a Flush Valve Assembly again, I would focus on compatibility, durability, and ease of installation first. In my opinion, the right flush valve assembly should solve the problem quickly and restore the toilet’s performance without extra hassle. Taking a few minutes to verify the details upfront would save me time, money, and frustration later.
Final Thoughts
I found the American Standard 738109-0070A Flush Valve Assembly to be a practical and reliable replacement part for keeping a toilet performing well. My takeaway is that choosing the right OEM component can make installation easier and help restore consistent flushing performance. If I want a long-term fix with a dependable fit, this is the kind of part I would feel confident using.
Author Profile
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Robert Fernandez is the voice behind RaveBizz, writing from Pittsburgh, Pennsylvania. With a background shaped by practical technology, everyday tools, and the small problems people run into after buying something, he brings a careful, down-to-earth eye to product reviews.
Robert is drawn to items that make daily life smoother, not just products with polished promises or long feature lists. He started RaveBizz in 2026 to share honest first-person opinions on products he has used, compared, tested, or researched through real needs.
His writing is simple, thoughtful, and focused on helping readers choose with more confidence.
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