---
product_id: 433282442
title: "Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit"
brand: "fluidmaster"
price: "€ 51.09"
currency: EUR
in_stock: true
category: "Fluidmaster"
url: https://www.desertcart.gr/products/433282442-fluidmaster-k-400h-039-high-performance-toilet-fill-valve-2
store_origin: GR
region: Greece
---

# High-performance PerforMAX fill valve for efficient water flow 2-inch adjustable flapper for perfect fit 7-year limited warranty for long-lasting reliability Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit

**Brand:** fluidmaster
**Price:** € 51.09
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your throne with precision and power!

## Quick Answers

- **What is this?** Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit by fluidmaster
- **How much does it cost?** € 51.09 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/433282442-fluidmaster-k-400h-039-high-performance-toilet-fill-valve-2)

## 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

- • **Built to Last:** Durable plastic construction backed by a 7-year limited warranty for peace of mind
- • **Trusted by Thousands:** Ranked #2 in Toilet Flappers with a stellar 4.6-star rating from over 4,000 users
- • **Universal Compatibility:** Fits standard 2-inch inlet/outlet connections with female iron pipe threading for easy upgrades
- • **Engineered for Efficiency:** PerforMAX fill valve optimizes water flow, reducing refill time and water waste
- • **Precision Fit, Zero Hassle:** Adjustable 2-inch flapper ensures seamless installation and leak-free performance

## Overview

The Fluidmaster K-400H-039 is a high-performance toilet fill valve and 2-inch adjustable flapper kit designed for universal 2-inch connections. Featuring the advanced PerforMAX valve for efficient water flow and a durable plastic build, it offers a 7-year limited warranty and is highly rated (#2 in Toilet Flappers) for reliable, leak-free operation.

## Description

Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit

## Features

- Made in Mexico

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09NYLJ1FZ |
| Best Sellers Rank | #398 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Toilet Flappers |
| Brand Name | Fluidmaster |
| Connector Type | Female Iron Pipe, FNPT |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,273) |
| Exterior Finish | Plastic |
| Global Trade Identification Number | 00039961031815 |
| Included Components | PerforMAX Toilet Fill Valve, 2-Inch Flapper |
| Inlet Connection Size | 2 Inches |
| Inlet Connection Type | Female Iron Pipe |
| Item Dimensions | 3.54 x 6.3 x 2.38 inches |
| Item Type Name | Toilet Repair Kit |
| Manufacturer | Fluidmaster |
| Manufacturer Part Number | K-400H-039-T14 |
| Manufacturer Warranty Description | 7 Year Limited |
| Material Type | Plastic |
| Maximum Pressure | 80 Pound per Square Inch |
| Model Number | K-400H-039-T14 |
| Number of Ports | 2 |
| Outlet Connection Size | 2 Inches |
| Outlet Connection Type | FNPT |
| Set Name | SET |
| Size | Universal, for 2 In. |
| Specification Met | CSA, ULC |
| Thread Size | 2 inches |
| Thread Type | NPT |
| UPC | 039961031815 |
| Unit Count | 1.0 Count |
| Valve Type | PerforMAX Toilet Fill Valve |

## Product Details

- **Brand:** Fluidmaster
- **Exterior Finish:** Plastic
- **Inlet Connection Size:** 2 Inches
- **Inlet Connection Type:** Female Iron Pipe
- **Item dimensions L x W x H:** 3.54 x 6.3 x 2.38 inches
- **Material:** Plastic
- **Maximum Operating Pressure:** 80 Pound per Square Inch
- **Number of Ports:** 2
- **Outlet Connection Size:** 2 Inches
- **Outlet Connection Type:** FNPT

## Images

![Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit - Image 1](https://m.media-amazon.com/images/I/71FddZ8DTML.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: will this replace a 400A on an american standard 4392?**
A: Yes this will replace the 400A and flapper that is in that model of tank. For more information please contact Fluidmaster’s Technical Service Department, we are 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: My new one leaks a little when you flush. Under the blue cap just a few drops than it stops leaking. Is this a normal release of water when flushed ?**
A: I would have been thrilled if mine had only leaked a few drops.  Mine sprayed water like a fire hose so I returned it.

**Q: Will this fit a Kohler 1.6 gallon toilet?**
A: I see no reason why not, unless your tank is too low to put the tank lid or cover back on. check height of fill valve and tank depth

**Q: Does this work with the toilets that does not have handles.. we have the one where you have to push the button in the center top of the tank.. Thanks**
A: The part you are buying is the tube that refills the tank after the flush has occurred.  Whether the flush is because of a handle or a button on the top of the tank. this unit is is separate from that action.  The flapper valve included may or may not work with your tank but the unit itself to fill the tank over and over will work just fine.

## Frequently Bought Together

- Fluidmaster K-400H-039 High Performance Toilet Fill Valve with 2-Inch Adjustable Toilet Flapper Kit
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**Shop now:** [https://www.desertcart.gr/products/433282442-fluidmaster-k-400h-039-high-performance-toilet-fill-valve-2](https://www.desertcart.gr/products/433282442-fluidmaster-k-400h-039-high-performance-toilet-fill-valve-2)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-07-24*