---
product_id: 4757091
title: "400LS Leak Sentry Pro Fill Valve , Black"
brand: "fluidmaster"
price: "RM180"
currency: MYR
in_stock: true
url: https://www.desertcart.com.my/products/4757091-400ls-leak-sentry-pro-fill-valve-black
store_origin: MY
region: Malaysia
---

# Precision bowl refill control Leak-lock alert tech Proudly USA-made durability 400LS Leak Sentry Pro Fill Valve , Black

**Brand:** fluidmaster
**Price:** RM180
**Availability:** ✅ In Stock

## Summary

> 🚨 Stop leaks before they start — smart, sleek, and built to last!

## Quick Answers

- **What is this?** 400LS Leak Sentry Pro Fill Valve , Black by fluidmaster
- **How much does it cost?** RM180 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.my](https://www.desertcart.com.my/products/4757091-400ls-leak-sentry-pro-fill-valve-black)

## 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

- • **Trusted Provenance:** Manufactured in the USA with top certifications (CSA, NSF, RoHS, UL).
- • **Leak Locking Action:** Instant alerts stop costly water waste before it starts.
- • **Lifetime Durability:** Crafted with premium materials for a lifetime of leak-free service.
- • **Precision Bowl Refill:** Adjustable refill prevents overflows and saves water bills.
- • **Built for Multi-Housing:** Engineered to perform flawlessly in high-demand environments.

## Overview

The Fluidmaster 400LS Leak Sentry Pro Fill Valve is a high-performance, leak-detecting toilet fill valve designed for durability and efficiency. Featuring a locking action that alerts users to leaks early, it prevents water waste and costly damage. Ideal for multi-housing applications, it offers adjustable bowl refill control to avoid overfilling, ensuring your toilet remains fully operational. Made in the USA with premium plastic and certified to CSA, NSF, RoHS, and UL standards, it comes with a lifetime warranty for peace of mind.

## Description

400LS Leak Sentry Pro Fill Valve , Black

## Features

- Fluidmaster leak sentry toilet fill valve - 181069
- This is highly durable
- This is manufactured in United states
- Locking action alerts users to leaks before money and water are wasted
- Ideal for multi-housing applications
- Toilet remains fully operational
- Bowl refill adjustment prevents wasteful overfilling
- All the features of the proven 400A Fill Valve (1554-3143)
- Locking action alerts users to leaks before money and water are wasted
- Ideal for multi-housing applications
- Toilet remains fully operational
- Bowl refill adjustment prevents wasteful overfilling

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Plastic |
| Brand | Fluidmaster |
| Item dimensions L x W x H | 5.75 x 16 x 14.5 inches |
| Exterior Finish | Plastic |
| Inlet Connection Size | 0.88 Inches |
| Inlet Connection Type | Threaded |
| Outlet Connection Type | NPT |
| Number of Ports | 1 |
| Outlet Connection Size | 0.88 Inches |
| Specification Met | CSA, NSF, RoHS, UL |
| Global Trade Identification Number | 00039961004000 |
| Manufacturer | Fluidmaster |
| UPC | 717029396419 039961415080 039961004000 |
| Part Number | 400LS |
| Item Weight | 9.3 ounces |
| Product Dimensions | 5.75 x 16 x 14.5 inches |
| Item model number | 400LS |
| Is Discontinued By Manufacturer | No |
| Size | Pack of 1 |
| Color | Black |
| Item Package Quantity | 1 |
| Included Components | Rough Plumbing;Parts and Repair;flush-valves |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | Lifetime |

## Product Details

- **Material:** Plastic
- **Brand:** Fluidmaster
- **Item dimensions L x W x H:** 5.75 x 16 x 14.5 inches
- **Exterior Finish:** Plastic
- **Inlet Connection Size:** 0.88 Inches
- **Inlet Connection Type:** Threaded
- **Outlet Connection Type:** NPT
- **Number of Ports:** 1
- **Outlet Connection Size:** 0.88 Inches
- **Specification Met:** CSA, NSF, RoHS, UL

## Images

![400LS Leak Sentry Pro Fill Valve , Black - Image 1](https://m.media-amazon.com/images/I/51DHKeTiXfL.jpg)
![400LS Leak Sentry Pro Fill Valve , Black - Image 2](https://m.media-amazon.com/images/I/71wdPBu619L.jpg)
![400LS Leak Sentry Pro Fill Valve , Black - Image 3](https://m.media-amazon.com/images/I/61TdKbcjdDL.jpg)
![400LS Leak Sentry Pro Fill Valve , Black - Image 4](https://m.media-amazon.com/images/I/71lS4mowoHL.jpg)

## Available Options

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

## Questions & Answers

**Q: noisy toilet ?cause**
A: I didn't consider this unit to be noisy - actually quieter than the model that replaced it and didn't cause water hammer at shut off like the new one. The problem with that one is the problematic Leak Sentry system and that's the reason I got rid of it.

**Q: It says American made and orgin of China. Which is it?**
A: There is no origin on any component or the instructions but the bottom of the box says "assembled in Mexico".

**Q: To make this short, one of my Fluidmasters decided not to work one day.  Refill would not shut off; had to keep the tank lid off and move the float va**
A: Check for some dirt or other foreign material in the valve and float.  Also make sure that the float height adjustment is set correctly so that it shuts off below the top of the bowl fill tube.  Otherwise the water cannot get high enough for the float to turn off the valve.

**Q: Does this work on most toilets, even if their original system was not this brand?**
A: Yes it does, it is a universal fill valve that will replace many of the older types of toilet valves

## Frequently Bought Together

- Fluidmaster 400LS Leak Sentry Pro Fill Valve , Black
- Fluidmaster 502P21 PerforMAX Universal Water-Saving Long Life Toilet Flapper for 2-Inch Flush Valves, Adjustable Solid Frame Design, Easy Install, Red, 1 pack
- Fluidmaster 5403 3-Inch Water Saving Long Life Toilet Flapper

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*Product available on Desertcart Malaysia*
*Store origin: MY*
*Last updated: 2026-01-26*