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Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets

4.8 4.8 out of 5 stars 5,376 ratings
$12.58
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Purchase options and add-ons

Material Plastic
Brand Fluidmaster
Item dimensions L x W x H 2.38 x 2.38 x 8.38 inches
Exterior Finish Plastic
Inlet Connection Type Barb

About this item

  • A direct replacement for Glacier Bay & Niagara Flapperless Toilets
  • Easy-to-install, instructions included
  • Increase your Glacier Bay / Niagara refill speed
  • Restore & optimize your toilet to factory performance
  • Replace old or inefficient fill valves with this high-quality replacement part
  • A fast and effective DIY solution to common toilet fill problems
› See more product details

Customer ratings by feature

Easy to install
4.9 4.9
Value for money
4.7 4.7
Durability
4.5 4.5
See all reviews

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Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets

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From the manufacturer

Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets

The Fluidmaster toilet fill valve is designed for use with Glacier Bay and Niagara flapperless toilets, and features a preset fill rate to help deliver the precise amount of water to the toilet with every flush.

Fully featured

Its features include a high-quality, corrosion-resistant construction, code-approved anti-siphon operation, and an easy installation.

  • Designed for use with Glacier Bay and Niagara brand toilets
  • Refills tank quickly, won't contaminate fresh water supply
  • Easy to install
  • Corrosion-resistant material
  • Anti-siphon operation, code approved

Product Description

Product Description

Fluidmaster is the number 1 toilet parts brand in the world, selling more than 100 million toilet products annually and selling more toilet-tank replacement parts than any other manufacturer in the world.

From the Manufacturer

Fluidmaster is the #1 toilet repair brand in the world. Since 1957, we have been guiding our customers to the right toilet repair solutions. Fluidmaster is dedicated to making the installation of its products easy and simple with a complete line of toilet repair parts including: fill valves, single and dual flush valves, flappers, tank levers, toilet seals (bowl wax and wax-free), toilet repair kits, flush valve seals, connectors and more. Fluidmaster parts are found in more toilets than all other brands combined. Fluidmaster distributes to over 90 countries and is the trusted brand by toilet manufacturers and professionals worldwide.

Product guides and documents

Installation Manual (PDF)

Top Brand: Fluidmaster

Highly Rated
100K+ customers rate items from this brand highly
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Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets
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High Performance Universal Toilet Fill Valve Replacement Kit - Quiet and Fast Fill, Super Easy to Install (1-Pack)
RAVINE High Performance Universal Toilet Fill Valve Replacement Kit - Quiet and Fast Fill, Super Easy to Install (1-Pack)
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Price$12.58$25.99$19.99$30.99$18.99$14.99
Delivery
Get it as soon as Saturday, May 11
—
Get it May 13 - 20
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Get it as soon as Saturday, May 11
Customer Ratings
4.84.8 out of 5 stars5,376
3.93.9 out of 5 stars3
4.54.5 out of 5 stars45
4.54.5 out of 5 stars586
4.64.6 out of 5 stars890
4.74.7 out of 5 stars33
Easy to install
4.9
—
4.6
4.5
4.6
—
Value for money
4.7
—
—
4.2
4.5
—
Noise level
—
—
4.2
4.3
4.4
—
Instruction quality
—
—
4.2
4.1
4.1
—
Sold By
Amazon.com
NuFlush LLC
Mulin
R&T Technology Co. Ltd
R&T Technology Co. Ltd
Shop Ravine
material
Plastic
—
Acrylonitrile Butadiene Styrene (ABS)
Acrylonitrile Butadiene Styrene
Polybutylene Terephtalate (PBT)
—
inlet type
Barb
—
—
Barb
Fill
—
exterior finish
Plastic
—
plastic
Abs,Chrome
—
—

Important information

Bulb Voltage

0 volts

Customer reviews

4.8 out of 5 stars
4.8 out of 5
5,376 global ratings

Customers say

Customers like the fit, performance, and value of the valve. For example, they mention it fits perfectly, works flawlessly, and is a well worth while purchase. That said, opinions are mixed on quality and filling time.

AI-generated from the text of customer reviews

290 customers mention287 positive3 negative

Customers find the installation of the valve straightforward, easy, and quick. They also appreciate the good instructions and mention that the valve is ready to use in minutes. Customers also mention that it takes a couple of minutes to change out and that it's a DIY-friendly and effective solution.

"This replacement valve worked fine, and was 2 minute install; very easy...." Read more

"...Easy installation and good instructions, if you need them. Price is very reasonable, and probably the best deal you'll find." Read more

"ordered because old unit leaked slowly. Instructions were good and install only took minutes...." Read more

"...Highly recommend for a DIY-friendly and effective solution!" Read more

257 customers mention244 positive13 negative

Customers are satisfied with the performance of the valve. They mention that it works flawlessly, improves performance, and quiet operation. Some say that it's easy to install and works like it should.

"This replacement valve worked fine, and was 2 minute install; very easy...." Read more

"Works perfectly, no issues, would buy again." Read more

"I think it is the best water tank design ever - the water is collected in the container, then with the turn of the handle, waterfalling in the main..." Read more

"...I managed to do it myself without any hassle. The improved performance and quiet operation are noticeable upgrades...." Read more

91 customers mention91 positive0 negative

Customers are satisfied with the fit of the valve. For example, they mention it fits perfectly, is of outstanding quality, and that no adjustments are needed.

"This is a perfect fit for the Fluidmaster 703A5B on a Niagara Conservation Toilet. Easy installation and good instructions, if you need them...." Read more

"Perfect fit and easy instulation" Read more

"Quality and Fit is outstanding. Flushing much better and faster with the new toilet fill valve...." Read more

"This fit perfectly and is very easy to install" Read more

72 customers mention66 positive6 negative

Customers are satisfied with the value of the valve. They mention that it is of excellent quality, saves them money, and is a well-worthwhile purchase. Some say that it's easy to install and serves its purpose.

"...Easy installation and good instructions, if you need them. Price is very reasonable, and probably the best deal you'll find." Read more

"Great item, toilet" Read more

"...Super cheap on Amazon, perfect replacement - now the 2nd toilet is working great!!..." Read more

"...The cost, ease of installation, and functionality make this a well-worthwhile purchase...." Read more

67 customers mention63 positive4 negative

Customers find the replacement of the fill valve to be easy. They mention that it's simple to unscrew and screw on.

"Impressed with the Fluidmaster toilet fill valve! Changing it was a breeze, thanks to the user-friendly design...." Read more

"...Easy replacement/installation, and great quality. I'm sure this will last for years, and I will happily update if I am proven wrong...." Read more

"...Super cheap on Amazon, perfect replacement - now the 2nd toilet is working great!!..." Read more

"This is perfect fit and very easy replacement.Turn off the waterUnscrew the connection to the fill pipe..." Read more

95 customers mention60 positive35 negative

Customers are mixed about the quality of the valve. Some mention it's a quality replacement part, reliable, and going strong, while others say it'll only last a few months before it has to be replaced. The valve and flapper feel a little flimsy and it fails prematurely.

"Great product and reliable" Read more

"Unfortunately this pump only lasts a few years before it starts to crap out. I recently purchased this pump for my toilet...." Read more

"...Easy replacement/installation, and great quality. I'm sure this will last for years, and I will happily update if I am proven wrong...." Read more

"Everything was ok, shipping, quality product. Thank you ✌️" Read more

29 customers mention13 positive16 negative

Customers are mixed about the filling time of the valve. Some mention it fills the tank very quickly, while others say it doesn't fill up promptly or doesn' t shut off when tank is full.

"...It will fill more slowly, but if you don’t, the water will enter at full pressure, splash off the underside of the tank lid and flood your floor!" Read more

"...Works perfectly, and now the trough fills up in about 1 minute. It's the little things that sometimes de-stress your life! lol" Read more

"...Suddenly the volume of fill water dropped significantly...." Read more

"...Fills the tank very quickly, though it's not quiet. Takes ~10 seconds to fill but I'm limiting flow on mine a little...." Read more

25 customers mention10 positive15 negative

Customers have mixed opinions about the leakage of the valve. Some mention that it works perfectly with no leaks, while others say that it worked for three months and then leaking.

"...after installation disassembled old unit to find the was a piece of debris causing leak.i" Read more

"This fixed a leaking valve and was really easy to replace. Much easier than standard valves" Read more

"...a hissing at the top of the toilet and found that the valve was worn out and leaking, so I bought this.It's a very easy install...." Read more

"Super easy to install and fixed the leak that had just started." Read more

Perfect Toilet Fill Valve for Niagara Flapperless N2428T
5 Stars
Perfect Toilet Fill Valve for Niagara Flapperless N2428T
After reading comments here I decided to give it a try and replace the flapperless toilet fill valve on my own. It was easy and straightforward. It was important to transfer the Flow Regulator from the original fill valve to the new one because it didn't come with it (see image with tiny flow regulator in a blue circle). Then adjusting the water level in the dump bucket was easy (if needed) - simply by pulling the whole thing gently towards the left to fill it with more water. The original one was fine for about 25 years and I hope that this one lasts at least as long.
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Top reviews from the United States

pdxtodd
5.0 out of 5 stars easy replacement, but probably could have fixed old one with new seal
Reviewed in the United States on March 26, 2024
Pattern Name: ValveVerified Purchase
This replacement valve worked fine, and was 2 minute install; very easy.

but in hind sight, I might have been able to replace just the fill valve 'seal' on the old one (for ~$2 on AMZ) rather than replace the whole unit. Next time that's what I'll try first.
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Kindle Customer
5.0 out of 5 stars Easy Installation and Perfect Fit
Reviewed in the United States on March 29, 2024
Pattern Name: ValveVerified Purchase
This is a perfect fit for the Fluidmaster 703A5B on a Niagara Conservation Toilet. Easy installation and good instructions, if you need them. Price is very reasonable, and probably the best deal you'll find.
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BENNETT R.
5.0 out of 5 stars Easy installation.
Reviewed in the United States on March 24, 2024
Pattern Name: ValveVerified Purchase
Works perfectly, no issues, would buy again.
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Natalya A
5.0 out of 5 stars Best water tank design
Reviewed in the United States on April 18, 2024
Pattern Name: ValveVerified Purchase
I think it is the best water tank design ever - the water is collected in the container, then with the turn of the handle, waterfalling in the main chamber and goes down with the force. No need to worry about gaskets, constant water dripping, etc. We installed the original tank sometime in 2011, and only now, we need to change this part - I hope that it will work as long as the first one did!
Helpful
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fxsales
5.0 out of 5 stars eay install worked as promised.
Reviewed in the United States on March 25, 2024
Pattern Name: ValveVerified Purchase
ordered because old unit leaked slowly. Instructions were good and install only took minutes.
after installation disassembled old unit to find the was a piece of debris causing leak.
i
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Danielle Klapcik
4.0 out of 5 stars 1st one was defective
Reviewed in the United States on April 18, 2024
Pattern Name: ValveVerified Purchase
Unfortunately this pump only lasts a few years before it starts to crap out. I recently purchased this pump for my toilet. The one I received was defective. (These things happen) My toilet wouldn't flush at first and then the pressure was so low nothing would go down. I've replaced about 3 of these since I bought my house and never had a problem. BUT. I was able to return the defective one through Khols drop-off and they sent a new one within a day. This one works just fine. It is a decent product for a flimsy piece of plastic
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Priscilla
5.0 out of 5 stars Must See! Best Toilet fill valve… Super Easy!
Reviewed in the United States on January 23, 2024
Pattern Name: ValveVerified Purchase
Impressed with the Fluidmaster toilet fill valve! Changing it was a breeze, thanks to the user-friendly design. I managed to do it myself without any hassle. The improved performance and quiet operation are noticeable upgrades. Highly recommend for a DIY-friendly and effective solution!
Helpful
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Steve Lawler
5.0 out of 5 stars Perfect replacement
Reviewed in the United States on February 28, 2024
Pattern Name: ValveVerified Purchase
Perfect fit and easy instulation
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Top reviews from other countries

Kevin Running
5.0 out of 5 stars Works great!!
Reviewed in Canada on February 3, 2024
Pattern Name: ValveVerified Purchase
Easy to install and works great!
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Don Edey
5.0 out of 5 stars Easy to install
Reviewed in Canada on January 5, 2024
Pattern Name: ValveVerified Purchase
Easy to adjust
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Dave
5.0 out of 5 stars Happy crapper !!
Reviewed in Canada on March 12, 2023
Pattern Name: ValveVerified Purchase
Simple install and works like it should. No more using the bucket to flush with.
Report
Dominic Cerisano
4.0 out of 5 stars These last about 5 years.
Reviewed in Canada on September 28, 2023
Pattern Name: ValveVerified Purchase
Our new flapperless Niagra commode work flawlessly for 5 years then suddenly took an hour to refill.

Kind of panicked when I looked at the fill valve - it was like some sort of alien technology that I assumed would be pure unobtainium (very expensive).

Very relieved these are only $25. Arrived in under 48 hours, popped it in (no tools required) and worked perfectly.

The genius of these is that when they fail, they fail closed, the valve still shuts off when it finally fills the internal tank. The internal tank keep water away from the external tank preventing "sweating" which ruins the walls around old-style tanks.

Also no flapper to degrade or expensive ball cock to rust. Just 25$ every 5 years. Zero maintenance.

One note to manufacturer - these eventually fail because they are directly attached to unfiltered tap water and clog due to mineral scale build up. Maybe a filter could be inserted and you could sell just the filters. The valve itself would likely last a lifetime.
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HeathT
5.0 out of 5 stars Flapperless toilet
Reviewed in Canada on August 21, 2023
Pattern Name: ValveVerified Purchase
I love my flapperless toilet. I changed everything to stop the running toilet and finally gave up and got a flapperless toilet. Now there is only one part and takes seconds to change it. This is a spare in case it is needed. So far 2 plus years in and it is still my spare. A good open for DIYers like myself who aren’t the most mechanically inclined
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