A broken toilet is everyone’s nightmare. It is well capable of turning your life into hell. The toilet fill valve is the most common component that easily breaks.
If you have a broken toilet fill valve, you can replace it with Fluidmaster valves. In that case, you must know the differences between Fluidmaster Pro 45 vs. 400A.
Both the valves are from the same brand. They come with many similarities as well as differences. Here I will discuss their differences and which one will be best for you.
A Quick Comparison Table
As- they are from the same brand and have somewhat similar features- it is hard to distinguish between them. You might not notice any differences by looking at it with bare eyes at all.
That is why I am here to show you their differences. The table below contains the differences between Fluidmaster Pro 45 and 400A toilet fill valves.
| Feature | Fluidmaster Pro 45 | 400A Fill Valve |
| Valve Size | 13×4×4 | 10×3×3 |
| Noise | Less Noisy | More Noisy |
| Fill Time | 130 seconds | 70 seconds |
| Shutoff Height | 9 to 14 inches | 9 to 14 inches |
| Installation | Easy | Easier |
| Warranty | 5 Years Warranty | 5 Years Limited Warranty |
| Price | $12 | $8 |
Key Differences Between Fluidmaster Pro 45 And 400A Fill Valve
You have gathered a rough idea about the differences between Fluidmaster Pro 45 and 400A.
Now it is time to get into more details because a comparison table is not enough for knowing all the factors.
Probably you will end up buying any of the two valves we are discussing here. So, you deserve to know every nitty-gritty of these two valves.
In this section, I will discuss and- point out their differences in detail. You will also know where they offer similar features.
So, let’s dive deeper.
- Valve Size
Valve size is one of the most important aspects of a fill valve. It determines which valve will fit into your toilet. However, the valve size of Fluidmaster Pro 45 is 13 inches long, 4 inches tall, and 4 inches deep.
On the contrary, the 400A valve is 10 inches wide, 3 inches tall, and 3 inches deep. As a result, 400A is more adjustable and will fit in most toilets than the Fluidmaster Pro 45.
- Noise
Noise is another factor that determines which valve you should purchase. You would not want to buy a valve with a loud noise because nobody wants to listen to a running toilet.
As far as noise is concerned, Fluidmaster Pro 45 is better than 400A. Because- it is quieter than the latter. Fluidmaster Pro 45 valve has rubber in its shank; it makes it soundless than 400A. So, the former one is the winner here.
- Fill Rate
The fill rate will determine how fast your toilet bowl will refill after each flush.
It is needless to say, a valve with a higher fill rate is better because your toilet will be ready to flush again faster with a higher fill rate valve.
Fluidmaster 400A takes only 70 seconds to refill a tank.
On the other hand, Fluidmaster Pro 45 takes about 130 seconds to fill the tank; it is almost double that of 400A. So, 400A wins here with flying colors.
- Shutoff Height
You have to know the shutoff height of your toilet. Because- different ones have different shutoff heights. If you fail to choose a valve that complies with your toilet’s shutoff height, you are doomed. Flush water might come out of your toilet tank.
Fluidmaster Pro 45 and 400A both the valves have an adjustable height of 9 to 14 inches. You have to make sure the water remains below this level. So, it is a tie.
- Installation
You will select a valve that is easy to install, and you can do it on your own in a lesser time. 400A comes with a pre-installed shank washer.
As a result, it is very- easy to install and requires less time. On the other hand, Fluidmaster Pro 45 takes a little more time than its competitor.
- Warranty
Warranty is another prime factor for choosing any product. You will buy a valve that has more years of warranty.
Fluidmaster Pro 45 comes with 5- years of warranty. On the other hand, 400A has 5- years of limited-time manufacturer warranty.
- Price
The price of Fluidmaster Pro 45 is higher than 400A. A-Pro 45 valve will cost you around $12, whereas a 400A valve will cost you about $8.
Which One Should You Buy?
I hope from the above discussion you now have enough facts to choose the right fill valve for your toilet.
But if you are still confused, don’t worry- I will guide you to your perfect match.
Both the valves have their unique features. They are good in their way. While choosing the valve, you have to see which one fits your toilet. Then you can look at other factors.
With all the details, we have come to know that Fluidmaster Pro 45 is better than the other one- in terms of Noise and Warranty.
But it comes at a higher price. On the other hand, 400A comes at a lower price and is better in terms of fill rate and installation process.
You have to remember that 400A is a much older version than Fluidmaster Pro 45. I hope it will help you choose the best one for your toilet.
Frequently Asked Questions (FAQ)
To adjust Fluidmaster Pro 45, you have to use the water level adjustment screw to adjust the height of the water level to the waterline. Rotate the rod clockwise to raise the level and vice versa.
Many fill valves in the market are providing excellent performance. Fluidmaster Performax is- considered to be the best overall fill valve available. It is a superior quality valve.
Korky valves are spongy yet sturdy. It has a 3- inches gasket, whereas Fluidmaster is 2 inches in size. Many people believe that Korky valves are better than that of Fluidmaster.
Most Fluidmaster valves are universal in size. As a result, they can fit in most toilets. For example, its valves are compatible with most 2 inches flush valve toilets.
Conclusion
It can be disastrous if you fail to select the right- valve for your toilet. It will not fit in. As a result, both your time and money will become wasted.
So you must know everything about Fluidmaster Pro 45 vs. 400A. I’m sure after reading my article you are now confident to purchase the suitable valve for your toilet.