---
product_id: 24933464
title: "400A Toilet Tank Repair Fill Valve - 2 Pack"
brand: "fluidmaster"
price: "€ 64.35"
currency: EUR
in_stock: true
reviews_count: 10
category: "Fluidmaster"
url: https://www.desertcart.pt/products/24933464-400a-toilet-tank-repair-fill-valve-2-pack
store_origin: PT
region: Portugal
---

# Fast, reliable water refill Easy DIY installation Adjustable height 9-14 in 400A Toilet Tank Repair Fill Valve - 2 Pack

**Brand:** fluidmaster
**Price:** € 64.35
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your throne with the #1 fill valve—because running toilets are so last decade!

## Quick Answers

- **What is this?** 400A Toilet Tank Repair Fill Valve - 2 Pack by fluidmaster
- **How much does it cost?** € 64.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/24933464-400a-toilet-tank-repair-fill-valve-2-pack)

## 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

- • **DIY-Friendly Setup:** Quick and simple installation that even non-experts can master—no plumber needed.
- • **Code-Approved Safety:** Anti-siphon design protects your fresh water supply with IAPMO certification.
- • **Value Pack Advantage:** Two valves included—perfect for multi-bathroom homes or spares to avoid future headaches.
- • **Durability You Can Trust:** Made from corrosion-resistant plastic for long-lasting, leak-free performance.
- • **Universal Fit, Zero Hassle:** Fits most standard toilets with an adjustable height for seamless compatibility.

## Overview

The Fluidmaster 400A Toilet Tank Repair Fill Valve 2-Pack is a top-selling, universally compatible toilet fill valve kit featuring an adjustable height from 9 to 14 inches. Designed for easy DIY installation, it ensures fast water refill and reliable performance with durable, corrosion-resistant materials. This code-approved, anti-siphon valve meets IAPMO standards and comes with all necessary components for a complete replacement, making it the go-to solution for efficient, long-lasting toilet repairs.

## Description

00A Universal Toilet Fill Valve is the #1 best-selling fill valve in the world! A universal design, with an adjustable height from 9″ to 14″ to fit most toilets. The 400A offers quick refill rates and replaces ballcocks and other toilet fill valves. A trusted and proven toilet fill valve, the 400A is built to last from corrosion-resistant materials for a long lifespan. This code approved, anti-siphon design, won’t contaminate the fresh water supply. Some toilet models not supported: Glacier Bay or Niagara Flapperless Toilets, One Piece Toilets. Does not replace Side Entry Valves. Fluidmaster’s late Founder invented the fill valve technology in 1958.

Review: Excellent Product - I have two bathrooms and both of the flush valves suffered from the same issue. They would not stop running. I received a replacement for one of them under warranty and the replacement was one of this model. It worked perfectly so I decided to order TWO more of the exact same model. One in a spare and the other was installed in my second bath room. Could not be happier with the installation, and performance. I am 78 and the toilets are not easy to get to. But the installation was so simple that even I could do it.
Review: Fixes that ghost toilet - We have three American Standard toilets and all had issues with water continuously running. I was going to bite the bullet and call a plumber when youtube came to the rescue. Watched a 10-min video, identified our toilets as being American Standard, and ordered these parts. Shipping was fast and install a breeze and success; no more running toilets. Life span is from 2-3 years so I purchased a few as spares.

## Features

- EASY INSTALLATION: Designed for quick and simple setup, this toilet fill valve replacement kit fits most standard toilet tanks for hassle-free repairs at home.
- ADJUSTABLE HEIGHT: EZ twist height feature allows the toilet fill valve to adjust from 9 to 14 in, ensuring compatibility with a wide range of toilet models and tank sizes.
- COMPLETE REPLACEMENT KIT: Includes all necessary components for a full toilet fill valve assembly, making it ideal for toilet repair or upgrading old toilet parts.
- DURABLE MATERIALS: Constructed from high-quality plastic, this toilet tank valve is built to last and withstand daily use, providing reliable water flow and performance.
- UNIVERSAL FIT: Suitable for most toilets, this toilet bowl fill valve kit is compatible with single-port systems and meets IAPMO specifications for dependable operation.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00G9OGNKC |
| Best Sellers Rank | #70,144 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #94 in Toilet Flush Valves |
| Brand | Fluidmaster |
| Brand Name | Fluidmaster |
| Customer Reviews | 4.6 out of 5 stars 185 Reviews |
| Exterior Finish | Plastic |
| Included Components | Fluidmaster - 39961000026 |
| Inlet Connection Size | 0.88 inches |
| Inlet Connection Type | Fill |
| Item Dimensions | 3 x 3 x 12.5 inches |
| Item Type Name | Fluidmaster - 39961000026 |
| Item Weight | 16 ounces |
| Item dimensions L x W x H | 3 x 3 x 12.5 inches |
| Manufacturer | Fluidmaster |
| Manufacturer Part Number | Fluidmaster - 39961000026 |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | Fluidmaster - 39961000026 |
| Number of Items | 1 |
| Number of Packs | 2 |
| Number of Pieces | 1 |
| Number of Ports | 1 |
| Outlet Connection Size | 0.88 inches |
| Outlet Connection Type | Fill |
| Set Name | Fluidmaster Toilet Fill Valve Replacement Kit (2 Piece) |
| Size | 9 to 14 inches |
| Specification Met | IAPMO |
| Thread Size | 1/2 inch NPT |
| UPC | 685784211974 758399396678 |
| Unit Count | 1 Count |
| Valve Type | Toilet Fill Valve |

## Product Details

- **Brand:** Fluidmaster
- **Inlet Connection Size:** 0.88 Inches
- **Inlet Connection Type:** Fill
- **Item dimensions L x W x H:** 3 x 3 x 12.5 inches
- **Manufacturer:** Fluidmaster
- **Material:** Plastic
- **Number of Ports:** 1
- **Outlet Connection Size:** 0.88 Inches
- **Outlet Connection Type:** Fill
- **Specification Met:** IAPMO

## Images

![400A Toilet Tank Repair Fill Valve - 2 Pack - Image 1](https://m.media-amazon.com/images/I/51iNxfe3yBL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Product
*by B***I on December 28, 2023*

I have two bathrooms and both of the flush valves suffered from the same issue. They would not stop running. I received a replacement for one of them under warranty and the replacement was one of this model. It worked perfectly so I decided to order TWO more of the exact same model. One in a spare and the other was installed in my second bath room. Could not be happier with the installation, and performance. I am 78 and the toilets are not easy to get to. But the installation was so simple that even I could do it.

### ⭐⭐⭐⭐⭐ Fixes that ghost toilet
*by B***Y on June 26, 2020*

We have three American Standard toilets and all had issues with water continuously running. I was going to bite the bullet and call a plumber when youtube came to the rescue. Watched a 10-min video, identified our toilets as being American Standard, and ordered these parts. Shipping was fast and install a breeze and success; no more running toilets. Life span is from 2-3 years so I purchased a few as spares.

### ⭐⭐⭐⭐ Did the trick
*by D***N on March 25, 2026*

It was just what we needed to replace the one that was leaking. Easily replaced. Hope it lasts and lasts.

## Frequently Bought Together

- Fluidmaster 400A Toilet Tank Repair Fill Valve - 2 Pack
- Fluidmaster 218 Toilet Refill Tube and Clip Replacement, For 100,200,200A, 400A and Most Other Valves , Black

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-09-12*