---
product_id: 3460490
title: "Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets"
brand: "fluidmaster"
price: "€ 18.53"
currency: EUR
in_stock: true
reviews_count: 13
category: "Fluidmaster"
url: https://www.desertcart.ie/products/3460490-fluidmaster-703ap4-specialty-toilet-fill-valve-for-glacier-bay-niagara
store_origin: IE
region: Ireland
---

# DIY-friendly, easy 1-step installation Faster refill speed for Glacier Bay/Niagara toilets 0.75-inch inlet/outlet barb connections Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets

**Brand:** fluidmaster
**Price:** € 18.53
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your throne with the fastest, easiest fill valve fix!

## Quick Answers

- **What is this?** Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets by fluidmaster
- **How much does it cost?** € 18.53 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/3460490-fluidmaster-703ap4-specialty-toilet-fill-valve-for-glacier-bay-niagara)

## Best For

- fluidmaster enthusiasts

## Why This Product

- Trusted fluidmaster brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Durable & Efficient:** High-quality plastic construction designed to outlast calcification and wear
- • **Effortless DIY Upgrade:** Install in minutes with clear instructions—no plumber needed
- • **Trusted Industry Leader:** From Fluidmaster, the #1 global toilet parts brand since 1957
- • **Speedy Refill Technology:** Boost your toilet’s refill time and reduce wait with optimized flow
- • **Precision Fit for Glacier Bay & Niagara:** Seamlessly replaces flapperless fill valves to restore peak performance

## Overview

The Fluidmaster 703AP4 is a premium specialty fill valve designed as a direct replacement for Glacier Bay and Niagara flapperless toilets. Featuring 0.75-inch barb connections and engineered for faster refill speeds, it restores your toilet’s factory performance with a simple, DIY-friendly installation. Backed by Fluidmaster’s global reputation and decades of expertise, this durable valve solves common fill issues efficiently, making it the go-to upgrade for modern, water-conscious homes.

## 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.

Review: Perfect - So the flipper valve on our toilet decided to stop working today. The water is very hard where we live and it appears the flipper valve calcified over time. I was able to find a YouTube video demonstrating the same issue and how to install a new one. It was very simple to install and worked for our toilet. Not only was the piece perfect but it was also priced well and desertcart was able to deliver the part the same day ♡
Review: Easy install. Worked perfectly. - Worked perfectly. Easy install.

## Features

- 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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004TPTFEE |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #8,834 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #9 in Toilet Flush Valves |
| Brand | Fluidmaster |
| Color | No Finish |
| Customer Reviews | 4.7 4.7 out of 5 stars (6,053) |
| Date First Available | March 11, 2011 |
| Exterior Finish | Plastic |
| Finish | No Finish |
| Global Trade Identification Number | 00039961371348 |
| Included Components | Product Only |
| Inlet Connection Size | 0.75 Inches |
| Inlet Connection Type | Barb |
| Installation Method | 1 |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 3.2 ounces |
| Item dimensions L x W x H | 2.38 x 2.38 x 8.38 inches |
| Item model number | 703A |
| Manufacturer | Fluidmaster |
| Material | Plastic |
| Outlet Connection Size | 0.75 Inches |
| Outlet Connection Type | Barb |
| Part Number | 703AP4 |
| Pattern | Valve |
| Product Dimensions | 2.38 x 2.38 x 8.38 inches |
| Shape | shape |
| Size | 1 Pack |
| Style | Yes |
| UPC | 796716399315 039961371348 |
| Usage | Inside |
| Warranty Description | Warranty |

## Product Details

- **Brand:** Fluidmaster
- **Exterior Finish:** Plastic
- **Global Trade Identification Number:** 00039961371348
- **Inlet Connection Size:** 0.75 Inches
- **Inlet Connection Type:** Barb
- **Item dimensions L x W x H:** 2.38 x 2.38 x 8.38 inches
- **Manufacturer:** Fluidmaster
- **Material:** Plastic
- **Outlet Connection Size:** 0.75 Inches
- **Outlet Connection Type:** Barb

## Images

![Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets - Image 1](https://m.media-amazon.com/images/I/51eM164OUBL.jpg)

## Questions & Answers

**Q: Can you buy just the tiny flow regulator ?**
A: Thank you for your question concerning the 703AP4 Flow Regulator. Fluidmaster does not sell the Flow Regulator.  For additional questions on any Fluidmaster product please contact us at your earliest convenience. Fluidmaster’s Technical Service Department is available Monday through Friday from 5:30 AM through 5:00 PM Pacific Standard Time. Contact options include: Chat www.fluidmaster.com/support E-Mail techsupport@fluidmaster.com and Toll Free 800-631-2011.

**Q: Trying to find a cleaning solution to put in this specialty tank should I just try some drop in tablets will they just fall out of the bucket when I f**
A: don't drop nothing in the tank or bucket if its not secure it will drop to the bottom of the tank and reduce the flow of water falling ,

**Q: will this replace fluidmaster 703a5b?**
A: WILL 703AP4 REPLACE 703A5B

**Q: How do you take the  plastic bowl out of your tank**
A: Please contact Niagara for help with your question. Their toll free number is 800-831-8383.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect
*by B***M on August 6, 2025*

So the flipper valve on our toilet decided to stop working today. The water is very hard where we live and it appears the flipper valve calcified over time. I was able to find a YouTube video demonstrating the same issue and how to install a new one. It was very simple to install and worked for our toilet. Not only was the piece perfect but it was also priced well and Amazon was able to deliver the part the same day ♡

### ⭐⭐⭐⭐⭐ Easy install. Worked perfectly.
*by J***. on January 24, 2026*

Worked perfectly. Easy install.

### ⭐⭐⭐⭐⭐ Flapperless - The greatest thing since toilet paper...With one HUGE caveat!
*by H***T on September 8, 2025*

There is no doubt that the flapperless dump bucket toilets are far superior to the flappers as they provide a stronger flush with less water. However, when they start leaking they make almost no noise...I had to pull the tank cover to hear the very faint hissing and see the spill bucket was full to the rim & spilling over into the tank/bowl very slightly. The hissing was inaudible with the cover on & the leakage was slow enough not to present itself in the bowl...where it did show up was on my water bill which was triple the normal amount. So yes, the flapperlesss toilets are much better but you need to keep a close ear/eye on them & pull the cover periodically to inspect for leaks. The flappers are noisy when they are leaking & often just jiggling the handle shuts them off. The valve that this one replaced was only about 5 years old but the seal/metering pin are subject to wear & degradation...don't find this out the expensive way! The valve is super easy to replace (make sure to flush the line out first if you turned the water off at the wall) & don't forget to swap the little white round restrictor orifice from the old one to the new one. If any adjustment is necessary just turn the thumb screw on the float, no tools are required for the job. PS: My city water company is great & has promised to adjust my bill so it's worth a call if it happens to you.

## Frequently Bought Together

- Fluidmaster 703AP4 Specialty Toilet Fill Valve for Glacier Bay and Niagara Conservation Flapperless Toilets
- Fluidmaster 242 Toilet Fill Valve Seal Replacement Part, Fits 400A Fill Valve , Black
- Niagara Conservation C2216-1 Niagara Supply Pipe

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-11*