---
product_id: 310857554
title: "Sloan Flushmate - Upper Supply, BU100505-KIT"
brand: "flushmate"
price: "€ 40.85"
currency: EUR
in_stock: true
reviews_count: 5
category: "Flushmate"
url: https://www.desertcart.pt/products/310857554-sloan-flushmate-upper-supply-bu100505-kit
store_origin: PT
region: Portugal
---

# Flushmate-specific 1.25" connectors Direct water delivery to Flushmate Includes hose clamp for secure fit Sloan Flushmate - Upper Supply, BU100505-KIT

**Brand:** flushmate
**Price:** € 40.85
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your flush game with precision and power!

## Quick Answers

- **What is this?** Sloan Flushmate - Upper Supply, BU100505-KIT by flushmate
- **How much does it cost?** € 40.85 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/310857554-sloan-flushmate-upper-supply-bu100505-kit)

## Best For

- flushmate enthusiasts

## Why This Product

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

## Key Features

- • **Durable Build:** High-impact plastic resists wear and tear for long-lasting reliability
- • **Optimized Flow:** Delivers water directly to pressure vessel tank for peak flush power
- • **Easy Installation:** Includes hose clamp and clear instructions to get you flushing fast
- • **Precision Engineering:** Flushmate-specific connectors ensure leak-proof performance
- • **Universal Compatibility:** Fits all Flushmate series for seamless upgrades

## Overview

The Sloan Flushmate BU100505-K Upper Supply Kit is a high-impact plastic plumbing repair kit designed for all Flushmate series toilets. Featuring Flushmate-specific 1.25" connectors and a secure hose clamp, it delivers water directly to the pressure vessel tank, ensuring leak-free, peak-performance flushes. Compact and easy to install, it’s the go-to solution for professional-grade toilet maintenance.

## Description

Sloan All Series Flushmate Upper Supply Kit For 2-Piece Toilet Operation. For all series Includes: upper supply and hose clamp Delivers water directly to the Flushmate Connects inlet line to pressure vessel tank

Review: Now in the toilet…. Satisfied - A leaking valve in the toilet
Review: Problem fixed - Worked perfect. No more air leak so flushes at peak power again. Make sure to cut the hose as close to the old barb as possible like directions say because there is not enough hose to mess it up. If you do then you will be taking the whole Flushmate system apart to put another hose on. Not hard to do, but a lot more work.

## Features

- For all series
- Includes: upper supply and hose clamp
- Delivers water directly to the Flushmate
- Connects inlet line to pressure vessel tank

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0057XUDGG |
| Brand | Flushmate |
| Brand Name | Flushmate |
| Connector Type | Flushmate specific |
| Customer Reviews | 4.6 out of 5 stars 289 Reviews |
| Exterior Finish | Black |
| Exterior finish | Black |
| Included Components | Sloan Flushmate BU-100505-K |
| Inlet Connection Size | 1.25 Millimeters |
| Inlet Connection Type | Flushmate specific |
| Inlet connection size | 1.25 Millimeters |
| Inlet connection type | Flushmate specific |
| Item Dimensions | 7.6 x 5.1 x 5.1 centimeters |
| Item Type Name | Sloan Flushmate BU-100505-K Upper Supply Kit for all series |
| Item dimensions L x W x H | 7.6 x 5.1 x 5.1 centimeters |
| Manufacturer | Sloan |
| Manufacturer Part Number | BU100505-K |
| Material | High-Impact Plastic |
| Material Type | High-Impact Plastic |
| Model Number | ST100500 |
| Outlet Connection Size | 1.25 Millimeters |
| Outlet Connection Type | Flushmate specific |
| Thread Size | 1.25 inches |
| Thread Type | Flushmate specific |
| UPC | 064871430052 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Flushmate
- **Exterior finish:** Black
- **Inlet connection size:** 1.25 Millimeters
- **Item dimensions L x W x H:** 7.6 x 5.1 x 5.1 centimeters
- **Material:** High-Impact Plastic

## Images

![Sloan Flushmate - Upper Supply, BU100505-KIT - Image 1](https://m.media-amazon.com/images/I/51vGb7oBiCL.jpg)
![Sloan Flushmate - Upper Supply, BU100505-KIT - Image 2](https://m.media-amazon.com/images/I/51kIoDGC+ML.jpg)
![Sloan Flushmate - Upper Supply, BU100505-KIT - Image 3](https://m.media-amazon.com/images/I/51RAQiKUxIL.jpg)

## Questions & Answers

**Q: Is it compatible with 503?**
A: Hello
I found a description for you in the instructions for this product

Flushmate Original Part BU100505-K Upper supply kit for all
series | BU100504-K | BU100503-K Upper Supply, For Use with All
2-Piece Toilet Configurations, Includes Upper Supply Assembly,
O-Ring, Hose Clamp Restrictions Note: Flushmate system is not
sold as a retrofit component for a gravity-fed toilet. Flushmate
System Pressurized flush eliminates double flush and clogs and
saves water. Fewer moving parts extends service life. 1ATR2 is
designed to replace any previous generation of Flushmate series,
including 500, 501, 501-A, and 501-B (except American Standard
fixtures). 2VRN8 is designed to replace series 500, 501, 501A,
and 501B in American Standard tank number 4086. Include
tank-to-bowl gasket. Flush cartridge, upper supply, and lower
supply are replacement parts for all Flushmate systems. This
upper supply may sit higher than the upper supply used on the
200, 500, and 501-A series. However, if the porcelain tank lid is
resting on the upper supply, it may need to be shimmed up on the
opposite side to level it out. Another option is to get a new
Flushmate system. Flushmate vessels and components do not
retrofit into gravity type toilets. They are only used with
Flushmate-equipped toilets.

**Q: Does this replace the brass fitting that came on original Flushmate 504?**
A: The fitting I replaced was plastic. However, it didn’t stop the running. There is a small filter in the water inlet that you should remove to increase the pressure. Those flush mate systems also have a recall so you may want to call them before getting too far off into the weeds.

**Q: Does this come with the Duckbill Valve?**
A: FYI, I called Sloan and they sold me 4 duckbill valves for $3.66 (on sale), but of course I paid $8 for shipping.  still, a better value than this.

**Q: What happens in tank if the upper valve goes bad?**
A: The toilet will run. This can also be caused by clogged inlet screen.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Now in the toilet…. Satisfied
*by J***S on 7 September 2022*

A leaking valve in the toilet

### ⭐⭐⭐⭐⭐ Problem fixed
*by J***B on 27 June 2025*

Worked perfect. No more air leak so flushes at peak power again. Make sure to cut the hose as close to the old barb as possible like directions say because there is not enough hose to mess it up. If you do then you will be taking the whole Flushmate system apart to put another hose on. Not hard to do, but a lot more work.

### ⭐⭐⭐⭐⭐ Good replacement
*by N***J on 28 August 2025*

Very good.

## Frequently Bought Together

- Flushmate BU100505-KIT Upper Supply Kit for Pressure-Assisted Toilet Systems - Compatible with 503, 503H, 504 Series, Fits Flushmate, Kohler, Gerber, Includes Upper Supply Assembly & Hose Clamp
- OEM Original Replacement For Sloan C-100500-K Flushmate Cartridge/PowerFlush Toilet Piston Cartridge Parts for Use with 500, 501, 501A, 501B, 503, and 504 Series Flushmate Tank System (1)
- Flushmate 9 in x 7 in x 3 in Black Plastic Powder Coated Wrench for Cartridge Removal

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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-07-11*