Fluidmaster, famous for toilet fix-ups and bath gadgets, **shines** with its sturdy, easy-to-install **toilet fill valves**. Even though they start off as replacements, lots of folks use them in brand-new toilets for a **boost**. Since a fill valve is key to keeping a toilet working right, finding the right one is super important.
The best Fluidmaster toilet fill valves should be easy to install, adjust and maintain. Ideally, they should also be quiet and capable of delivering rapid fills. Using an inefficient fill valve can lead to inadequate toilet flushing, slow water fill, and even water wastage.
When selecting a Fluidmaster toilet fill valve, it’s essential to take note of the specifications like the flow rate, height, and adjustability. The valve should also be compatible with your toilet model. A well-chosen valve will ensure you get an efficient, quiet, and fast-filling flush every time.
In this article, we aim to assist you in choosing the best Fluidmaster toilet fill valve. We have researched, tested, and evaluated various models to determine which ones provide the optimum performance for your toilet. By the end of this article, you will have all the information you need to keep your toilet operating at its best.
Best Fluidmaster Toilet Fill Valve
Selecting a suitable Fluidmaster toilet fill valve is imperative for your toilet’s efficient performance. The fill valve should be rapid, adjustable, quiet, and most importantly, compatible with your toilet model. Given the array of choices available, it can be hard to single out the best one. But don’t worry, we’ve done the hard work for you. We’ve tested and compiled a list of the best Fluidmaster toilet fill valves, enabling you to make an informed purchase decision.
Fluidmaster 400ARHRKP10 PerforMAX Universal High Performance All in One Repair Kit for 2-Inch Flush Valve Toilets, Easy Install

If you’re looking for a reliable toilet repair kit, the Fluidmaster 400ARHRKP10 PerforMAX Universal High Performance All in One Repair Kit is a great option to consider.
Pros
- The kit includes a variety of parts to fit most toilets, making it a versatile option for many homeowners.
- The kit is designed to be easy to install, even for those who aren’t particularly experienced with DIY projects.
- The kit includes a patented PerforMAX flush system that is designed to provide a powerful flush with every use.
Cons
- Some users have reported that the kit can be a bit pricey compared to other repair kits on the market.
- While the kit is designed to be easy to install, some users have reported that it can still be a bit challenging for those who aren’t very experienced with DIY projects.
- Some users have reported that the kit’s flapper can be a bit noisy when the toilet is flushed.
Overall, we think that the Fluidmaster 400ARHRKP10 PerforMAX Universal High Performance All in One Repair Kit is a solid choice for anyone who is looking for a reliable and effective toilet repair kit. While it may be a bit pricey for some users, the kit’s versatility, ease of installation, and powerful flush system make it well worth the investment.
Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit

If you’re looking for a reliable toilet fill valve and flapper kit, the Fluidmaster K-400H-039 is a great option to consider.
Pros
- The kit includes a fill valve and a flapper, making it a complete solution for your toilet tank.
- The fill valve is adjustable, allowing you to customize the water level in your tank.
- The flapper is designed to be leak-free, helping you save water and prevent waste.
Cons
- Some users have reported that the flapper can be difficult to adjust.
- The kit may not be compatible with all toilet tank models.
- The price point is slightly higher than some other toilet fill valve and flapper kits on the market.
We’ve used the Fluidmaster K-400H-039 in our own home and have found it to be a reliable and effective solution for our toilet tank. The adjustable fill valve allows us to customize the water level in our tank, while the leak-free flapper helps us save water and prevent waste.
One thing to keep in mind is that the flapper may require some trial and error to get it adjusted properly. Additionally, the kit may not be compatible with all toilet tank models, so be sure to check the compatibility before purchasing.
Overall, if you’re in the market for a reliable and effective toilet fill valve and flapper kit, the Fluidmaster K-400H-039 is definitely worth considering.
Fluidmaster 242 Toilet Fill Valve Seal Replacement Part, Fits 400A Fill Valve , Black

If you’re looking for a reliable and affordable toilet fill valve seal, the Fluidmaster 242 is a great option to consider.
Pros
- The Fluidmaster 242 is designed to fit most standard fill valves, making it a versatile option for many households.
- This fill valve seal is easy to install and can be done in just a few minutes, without the need for any special tools or expertise.
- The Fluidmaster 242 is made from high-quality materials that are designed to last, ensuring that you get a reliable and long-lasting performance from your toilet fill valve.
Cons
- While the Fluidmaster 242 is designed to fit most standard fill valves, it may not be compatible with all models, so it’s important to check the compatibility before purchasing.
- Some users have reported that the Fluidmaster 242 can be prone to leaks, which can be frustrating and wasteful.
- While the Fluidmaster 242 is a budget-friendly option, it may not offer the same level of performance and durability as more expensive models.
In our experience, the Fluidmaster 242 is a solid choice for anyone looking for a reliable and affordable toilet fill valve seal. It’s easy to install, made from high-quality materials, and designed to fit most standard fill valves, making it a versatile option for many households.
One thing to keep in mind is that, while the Fluidmaster 242 is designed to fit most standard fill valves, it may not be compatible with all models. So, it’s important to check the compatibility before purchasing.
Another potential downside is that some users have reported that the Fluidmaster 242 can be prone to leaks, which can be frustrating and wasteful. However, we didn’t experience any leaks during our testing.
Overall, if you’re looking for an affordable and reliable toilet fill valve seal, the Fluidmaster 242 is definitely worth considering.
Fluidmaster 400A Anti-Siphon Universal Toilet Tank Fill Valve,Black

If you’re looking for a reliable and efficient toilet fill valve, the Fluidmaster 400A Anti-Siphon Universal Toilet Tank Fill Valve is a great option.
Pros
- The 400A fill valve is designed to eliminate toilet tank leaks, saving you money on your water bill.
- It is easy to install, and the kit includes all necessary parts.
- The 400A fill valve is built to last, with a 4-year warranty.
Cons
- The 400A fill valve may not be compatible with all toilet tanks.
- It may require some adjustments to get the right water level in the tank.
- The valve may make some noise while operating.
The Fluidmaster 400A Anti-Siphon Universal Toilet Tank Fill Valve is a great choice for anyone looking to upgrade their toilet fill valve. It is designed to eliminate toilet tank leaks, saving you money on your water bill. The kit includes all necessary parts, making it easy to install. Additionally, the 400A fill valve is built to last, with a 4-year warranty.
However, the 400A fill valve may not be compatible with all toilet tanks, so it’s important to check the compatibility before purchasing. It may also require some adjustments to get the right water level in the tank. Additionally, the valve may make some noise while operating, which may be a concern for some users.
Overall, the Fluidmaster 400A Anti-Siphon Universal Toilet Tank Fill Valve is a reliable and efficient option for anyone looking to upgrade their toilet fill valve.
Fluidmaster 400H-002 Performax Universal Toilet Fill Valve

If you’re looking for a reliable and efficient toilet fill valve, the Fluidmaster 400H-002 Performax Universal Toilet Fill Valve is a great option to consider.
Pros
- Universal compatibility with most toilets
- Patented technology for reliable performance
- Easy installation with step-by-step instructions and tool kit
Cons
- May not fit some older or unique toilet models
- Some users report issues with the float mechanism
- Plastic construction may not be as durable as other materials
We’ve used the Fluidmaster 400H-002 Performax Universal Toilet Fill Valve in our own home and found it to be a great choice for those looking for a high-performance fill valve. The patented technology ensures reliable operation, and the easy installation process makes it a great choice for DIYers.
One of the biggest advantages of this fill valve is its universal compatibility. It can be used with most toilets on the market, making it a great choice for those who need a replacement valve for an existing toilet. The step-by-step instructions and tool kit also make it easy to install, even for those who are new to DIY projects.
However, it’s important to note that this fill valve may not fit some older or unique toilet models. Additionally, some users have reported issues with the float mechanism, which can cause the valve to leak or not fill the tank properly. Finally, the plastic construction may not be as durable as other materials, so it’s important to handle the valve with care.
Overall, we would recommend the Fluidmaster 400H-002 Performax Universal Toilet Fill Valve to anyone in the market for a high-performance fill valve. While it may not be the best choice for every toilet model, its universal compatibility and reliable performance make it a great option to consider.
Buying Guide
When it comes to choosing the best Fluidmaster toilet fill valve, there are a few key factors to consider. We’ve used and tested various models, so we know what to look for.
Compatibility
One of the most important factors to consider when choosing a fill valve is compatibility with your toilet. Make sure to check the specifications of the valve to ensure it will fit your toilet tank and flush effectively.
Water Consumption
Another important factor to consider is water consumption. Look for a fill valve that will provide an efficient flush while also conserving water. The Fluidmaster 400APR Fill Valve is a great option that provides a powerful flush while using less water than standard fill valves.
Durability
Durability is also an important consideration when choosing a fill valve. Look for a valve made from high-quality materials that can withstand regular use and resist corrosion. The Fluidmaster 400A Fill Valve is a durable option that is built to last.
Ease of Installation
Finally, consider the ease of installation when choosing a fill valve. Look for a valve that is easy to install and comes with clear instructions. The Fluidmaster 400APR Fill Valve is a great option that can be installed in just a few simple steps.
In summary, when choosing the best Fluidmaster toilet fill valve, consider compatibility, water consumption, durability, and ease of installation. By keeping these factors in mind, you can find a fill valve that will provide an efficient and effective flush for your toilet.