---
product_id: 121046894
title: "Fluidmaster400LS Rp4 Fill Valve, for Use with Most Toilet Tanks Including 1.6 Gal Models, Black, Pack of 1"
brand: "fluidmaster"
price: "299 zł"
currency: PLN
in_stock: true
url: https://www.desertcart.pl/products/121046894-fluidmaster400ls-rp4-fill-valve-for-use-with-most-toilet-tanks
store_origin: PL
region: Poland
---

# Multi-Housing Ready Durable Design Made in USA Fluidmaster400LS Rp4 Fill Valve, for Use with Most Toilet Tanks Including 1.6 Gal Models, Black, Pack of 1

**Brand:** fluidmaster
**Price:** 299 zł
**Availability:** ✅ In Stock

## Summary

> 🚽 Flush Away Your Worries with Fluidmaster!

## Quick Answers

- **What is this?** Fluidmaster400LS Rp4 Fill Valve, for Use with Most Toilet Tanks Including 1.6 Gal Models, Black, Pack of 1 by fluidmaster
- **How much does it cost?** 299 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/121046894-fluidmaster400ls-rp4-fill-valve-for-use-with-most-toilet-tanks)

## 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 Brand:** Fluidmaster is synonymous with quality in plumbing.
- • **Unmatched Durability:** Engineered to last, ensuring peace of mind.
- • **Lightweight Yet Sturdy:** Weighs only 263g, making it easy to handle.
- • **Effortless Installation:** Quick setup means less downtime and more efficiency.
- • **Versatile Compatibility:** Fits most toilet tanks, including 1.6 Gal models.

## Overview

The Fluidmaster 400LS Rp4 Fill Valve is a highly durable toilet fill valve designed for use with most toilet tanks, including 1.6-gallon models. Manufactured in the USA, this lightweight yet sturdy valve is ideal for multi-housing applications, ensuring reliable performance and easy installation.

## Description

Fluidmaster400LS Rp4 Fill Valve, for Use with Most Toilet Tanks Including 1.6 Gal Models, Black, Pack of 1

## Features

- Fluidmaster leak sentry toilet fill valve - 181069
- This is highly durable
- This is manufactured in United states
- Ideal for multi-housing applications
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Fluidmaster |
| Part Number | 400LS |
| Product Dimensions | 14.61 x 40.64 x 36.83 cm; 263.08 Grams |
| Item model number | 400LS |
| Size | Pack of 1 |
| Colour | Black |
| Material | Plastic |
| Item Package Quantity | 1 |
| Included Components | Rough Plumbing;Parts and Repair;flush-valves |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 263 g |

## 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

![Fluidmaster400LS Rp4 Fill Valve, for Use with Most Toilet Tanks Including 1.6 Gal Models, Black, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/51DHKeTiXfL.jpg)
![Fluidmaster400LS Rp4 Fill Valve, for Use with Most Toilet Tanks Including 1.6 Gal Models, Black, Pack of 1 - Image 2](https://m.media-amazon.com/images/I/71wdPBu619L.jpg)
![Fluidmaster400LS Rp4 Fill Valve, for Use with Most Toilet Tanks Including 1.6 Gal Models, Black, Pack of 1 - Image 3](https://m.media-amazon.com/images/I/61TdKbcjdDL.jpg)
![Fluidmaster400LS Rp4 Fill Valve, for Use with Most Toilet Tanks Including 1.6 Gal Models, Black, Pack of 1 - Image 4](https://m.media-amazon.com/images/I/71lS4mowoHL.jpg)

## Available Options

This product comes in different **Size Name** 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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**Shop now:** [https://www.desertcart.pl/products/121046894-fluidmaster400ls-rp4-fill-valve-for-use-with-most-toilet-tanks](https://www.desertcart.pl/products/121046894-fluidmaster400ls-rp4-fill-valve-for-use-with-most-toilet-tanks)

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-01-24*