---
product_id: 185731635
title: "Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube"
brand: "nuflush"
price: "€ 98.88"
currency: EUR
in_stock: true
reviews_count: 1
category: "Nu Flush"
url: https://www.desertcart.be/products/185731635-toto-thu129p-2a-flush-valve-assembly-replacement-with-adjustable-sliding
store_origin: BE
region: Belgium
---

# Soft silicone extra light flapper for smooth, efficient flush Adjustable sliding overflow tube for custom water level 3-inch flush valve fits most 2-piece toilets Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube

**Brand:** nuflush
**Price:** € 98.88
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your flush game — precision, power, and peace of mind!

## Quick Answers

- **What is this?** Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube by nuflush
- **How much does it cost?** € 98.88 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/185731635-toto-thu129p-2a-flush-valve-assembly-replacement-with-adjustable-sliding)

## Best For

- nuflush enthusiasts

## Why This Product

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

## Key Features

- • **Durable Silicone Flapper:** Soft, extra light silicone flapper ensures a reliable, quiet flush every time.
- • **Customizable Water Control:** Adjust the sliding overflow tube to optimize your tank’s water level and flushing power.
- • **Heavy-Duty Hardware Included:** Stainless steel bolts and rubber grommets provide secure installation and leak prevention.
- • **Precision Fit for 3-Inch Toilets:** Seamlessly compatible with most two-piece toilet models for hassle-free replacement.
- • **Upgrade Your Bathroom Efficiency:** Enhance flushing performance and reduce water waste with this premium valve assembly.

## Overview

The Toto THU129P-2A Flush Valve Assembly Replacement is designed for 3-inch two-piece toilets, featuring an adjustable sliding overflow tube for customizable water levels and a soft silicone extra light flapper for efficient flushing. It includes stainless steel bolts and rubber grommets for secure installation, making it a reliable upgrade to improve toilet performance and water efficiency.

## Description

Toto THU129P-2A 3 inch Flush Valve Assembly for Two Piece Toilets. Soft Silicone Extra Light Flapper for Toto model # 774, 794, 754 Will fit most three inch two piece toilets. Comes with adjustable Sliding overflow tube that puts more water in your toilet tank. HD Stainless Steel Bolts and Nuts with Rubber Grommets. Adjustable overflow tube can be adjusted up and down to the height you want and then glued in place about an 1/2 inch below the handle hole is best in most toilets.

Review: Design flaw in anchor bolts & cheap washers - I consider it a design flaw. The anchor bolt heads are small and pull through the rubber gasket, causing the gasket to fail, the tank to come unseated and all the water to go everywhere. I ended up putting one of the plastic washers on top of the rubber gasket to get it to keep from pulling through and using one of my own washers below to stabilize the tank on the base. The bolts are also rather thin with small heads, not the best quality. The rest of the flapper assembly is great, nice adjustable tube length and quality flapper.

## Features

- Toto THU129P-2A Flush Valve Assembly Replacement
- For 3 inch Two Piece Toilets
- Comes with adjustable Sliding overflow tube
- Soft Silicone Extra Light Flapper model # 774, 794, 754

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07R8NG2GB |
| Best Sellers Rank | #1,142,557 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #591 in Toilet Flappers #94,532 in Kitchen & Bath Fixtures |
| Customer Reviews | 4.1 4.1 out of 5 stars (5) |
| Date First Available | July 19, 2021 |
| Manufacturer | NuFlush |
| Material | ABS |

## Images

![Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube - Image 1](https://m.media-amazon.com/images/I/510AllH47SL.jpg)
![Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube - Image 2](https://m.media-amazon.com/images/I/51zMy9ixaRL.jpg)
![Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube - Image 3](https://m.media-amazon.com/images/I/51smLATHzLL.jpg)
![Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube - Image 4](https://m.media-amazon.com/images/I/51Frj+M2ZLL.jpg)
![Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube - Image 5](https://m.media-amazon.com/images/I/51Z70GnXY1L.jpg)

## Customer Reviews

### ⭐⭐ Design flaw in anchor bolts & cheap washers
*by K***T on November 6, 2021*

I consider it a design flaw. The anchor bolt heads are small and pull through the rubber gasket, causing the gasket to fail, the tank to come unseated and all the water to go everywhere. I ended up putting one of the plastic washers on top of the rubber gasket to get it to keep from pulling through and using one of my own washers below to stabilize the tank on the base. The bolts are also rather thin with small heads, not the best quality. The rest of the flapper assembly is great, nice adjustable tube length and quality flapper.

## Frequently Bought Together

- Toto THU129P-2A Flush Valve Assembly Replacement with Adjustable Sliding Overflow Extension Tube
- TOTO TSU99A.XR Fill Valve, Blue

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**Shop now:** [https://www.desertcart.be/products/185731635-toto-thu129p-2a-flush-valve-assembly-replacement-with-adjustable-sliding](https://www.desertcart.be/products/185731635-toto-thu129p-2a-flush-valve-assembly-replacement-with-adjustable-sliding)

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*Product available on Desertcart Belgium*
*Store origin: BE*
*Last updated: 2026-04-22*