---
product_id: 48677967
title: "PRO45B Fill Valve with Brass Shank - Black"
brand: "fluidmaster"
price: "280.40 DT"
currency: TND
in_stock: true
reviews_count: 12
category: "Fluidmaster"
url: https://www.desertcart.tn/products/48677967-pro45b-fill-valve-with-brass-shank-black
store_origin: TN
region: Tunisia
---

# Universal fit for all brands Ultra-quiet operation Heavy-duty brass shank PRO45B Fill Valve with Brass Shank - Black

**Brand:** fluidmaster
**Price:** 280.40 DT
**Availability:** ✅ In Stock

## Summary

> 🚽 Upgrade your flush game with pro-grade durability and silence!

## Quick Answers

- **What is this?** PRO45B Fill Valve with Brass Shank - Black by fluidmaster
- **How much does it cost?** 280.40 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/48677967-pro45b-fill-valve-with-brass-shank-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

- • **Built to Last:** Heavy-duty brass shank ensures unmatched durability and leak resistance
- • **Trusted by Pros:** Preferred by professional plumbers for reliability and ease of installation
- • **Peace of Mind Guarantee:** Backed by a 5-year assurance for long-term confidence
- • **Universal Compatibility:** Seamlessly fits all toilet brands for hassle-free upgrades
- • **Whisper-Quiet Performance:** Engineered for ultra-quiet operation—no more noisy flushes

## Overview

The Fluidmaster PRO45B Fill Valve features a robust brass shank for superior durability and a watertight seal design that outperforms cheap alternatives. Compatible with all toilet brands, it offers ultra-quiet operation and is the go-to choice for professional plumbers. Easy to install and backed by a 5-year warranty, it ensures a reliable, leak-free flush every time.

## Description

From the manufacturer

Review: Amazing - The gold standard - perfection. Easy to install. Easy to swap (can just swap with taking apart). Why didn't I know about these before- Amazing
Review: Super swap-in replacement - We've a push-button loo in our new place. I've worked with traditional ballcock-based pull-handle loos in the past, but this approach was all new to me. And when our cistern started filling in a repeatedly stop-start way, clanging the pipes each time it did so, I had to find a way of fixing it. So, I watched a few YouTube videos. One plumber recommended this device. Checking reviews on other sites indicated that it's highly recommended by professionals. Notably, there's also a video by Fluidmaster itself explaining how they recommend fitting the valve, which is worth a view. The price of this item goes up and down on a daily basis, so I'd keep an eye on it for a few days if I were you. Fitting it in my case was easy and took 30 minutes. Admittedly I'd had a rehearsal a few days earlier removing the old fill valve to see if it could be repaired. But this is basically a swap-in part, in a system designed to be both modular and to avoid interconnection. It looks bigger in the picture here on desertcart, which worried me. I worried the brass shank fitting was too large for my existing attachment. But I took a leap of faith based on that YouTube plumber's recommendation. Before installation, I just adjusted its length/height to match the existing valve. I also fitted the small in-pipe flow regulator widget they provide. We're mains-fed and the water pressure isn't amazingly high, but I figured the flow regulator would help reduce noise. And it does. Even with the flow regulator in place, the cistern fills in less than a minute. It's not silent, but the bottom-filling approach of this valve means it's more of a quiet hissing sound, compared to water being poured onto water, which is the sound the previous valve made. There's no bang or clang when the cistern is full. Once fitted and with the water turned back on, I had to adjust the little thumb screw to optimise the water level in the cistern to just below the overflow pipe. That wasn't hard, and was completed after a few test flushes. All in all, very happy. It's certainly a lot less fussy than the ballcock valves of old.

## Features

- Fits all brands
- Heavy-duty brass shank for added durability
- Ultra-quiet operation
- Preferred by professional plumbers
- 5-Year assurance

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004O8601M |
| Brand | Fluidmaster |
| Connector Type | Female Iron Pipe |
| Country of Origin | China |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,613) |
| Exterior Finish | Brass |
| Global Trade Identification Number | 00039961455420 |
| Included Components | valve; fittings; |
| Inlet Connection Size | 0.5 Inches |
| Inlet Connection Type | Female Iron Pipe 0.5 inches |
| Item Dimensions | 9 x 7.8 x 32.2 centimetres |
| Item Type Name | Fluidmaster PRO45B Fill Valve with Brass Shank |
| Item Weight | 299 g |
| Manufacturer | Fluidmaster |
| Material | Brass |
| Model Number | PRO45B |
| Number of Pieces | 1 |
| Number of Ports | 2 |
| Outlet Connection Size | 1.27 Centimeters |
| Outlet Connection Type | Barb |
| Size | 7.8 cm (W) x 9 cm (L) x 32.2 cm (H) |
| Specification Met | CSA, ULC |
| Thread Size | 1/2 Inch |
| Thread Type | Push-Fit |
| UPC | 772040375119 039961455420 798256164767 |
| Unit Count | 1.0 count |
| Valve Type | Float Valve |

## Product Details

- **Brand:** Fluidmaster
- **Exterior finish:** Brass
- **Inlet connection size:** 0.5 Inches
- **Inlet connection type:** Female Iron Pipe 0.5 inches
- **Item dimensions L x W x H:** 9 x 7.8 x 32.2 centimetres
- **Material:** Brass
- **Number of ports:** 2
- **Outlet connection size:** 1.27 Centimeters
- **Outlet connection type:** Barb
- **Specification met:** CSA, ULC

## Images

![PRO45B Fill Valve with Brass Shank - Black - Image 1](https://m.media-amazon.com/images/I/51sjP6KJCjL.jpg)

## Questions & Answers

**Q: Why have a brass shank? It cannot be held when tightening the pipe joint. It still has to be tightened against the seal/ rubber seal friction.**
A: so that it does not cross thread

**Q: What is the diameter of the threaded brass shank**
A: Threaded brass shank is 1/2”.

**Q: Would this be suitable for a modern macdee cistern the valve bad design isnt working right. thanks for any help**
A: Might be a case of checking the height of your old one against. I'd think you could use any type of fill valve if you had space in the cistern. But same as Dennis, not sure. I replaced a terrible cheap fill valve with this about a year ago and it has really made the difference (15 minute refill to less than 10 seconds).

**Q: What water pressure does this product handle please?**
A: The water pressure recently tested at my property is 9 Bar and I have had this in over 2 years with no problems but the Armitage Shanks model gave me a lot of trouble.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Amazing
*by A***R on 11 April 2026*

The gold standard - perfection. Easy to install. Easy to swap (can just swap with taking apart). Why didn't I know about these before- Amazing

### ⭐⭐⭐⭐⭐ Super swap-in replacement
*by M***0 on 21 September 2022*

We've a push-button loo in our new place. I've worked with traditional ballcock-based pull-handle loos in the past, but this approach was all new to me. And when our cistern started filling in a repeatedly stop-start way, clanging the pipes each time it did so, I had to find a way of fixing it. So, I watched a few YouTube videos. One plumber recommended this device. Checking reviews on other sites indicated that it's highly recommended by professionals. Notably, there's also a video by Fluidmaster itself explaining how they recommend fitting the valve, which is worth a view. The price of this item goes up and down on a daily basis, so I'd keep an eye on it for a few days if I were you. Fitting it in my case was easy and took 30 minutes. Admittedly I'd had a rehearsal a few days earlier removing the old fill valve to see if it could be repaired. But this is basically a swap-in part, in a system designed to be both modular and to avoid interconnection. It looks bigger in the picture here on Amazon, which worried me. I worried the brass shank fitting was too large for my existing attachment. But I took a leap of faith based on that YouTube plumber's recommendation. Before installation, I just adjusted its length/height to match the existing valve. I also fitted the small in-pipe flow regulator widget they provide. We're mains-fed and the water pressure isn't amazingly high, but I figured the flow regulator would help reduce noise. And it does. Even with the flow regulator in place, the cistern fills in less than a minute. It's not silent, but the bottom-filling approach of this valve means it's more of a quiet hissing sound, compared to water being poured onto water, which is the sound the previous valve made. There's no bang or clang when the cistern is full. Once fitted and with the water turned back on, I had to adjust the little thumb screw to optimise the water level in the cistern to just below the overflow pipe. That wasn't hard, and was completed after a few test flushes. All in all, very happy. It's certainly a lot less fussy than the ballcock valves of old.

### ⭐⭐⭐⭐ Good, simple to fit, though they ought to provide a brass backing nut...
*by F***N on 28 November 2012*

Its nice and adjustable in terms of pipe height and the float height. Also would've been super easy to fit, unfortunately my pipes don't line up nicely as they do on all those youtube tutorials. This meant I had to ensure the bottom was tightened up much more than recommended to ensure the washer sat nice and flat at the bottom of the cistern, to avoid a leak. I had to purchase a brass backing nut separately to solve my particular problem, but as it has a brass shaft they could've supplied a metallic nut as the threads are less likely to get damaged. Either way a good problem and sorted out my water hammer problem. Oh it also comes with an restricter which you can optionally fit to further reduce water hammer, I fitted the restricter anyway.

## Frequently Bought Together

- Fluidmaster, Black PRO45B Fill Valve with Brass Shank, Pack of 1
- Fluidmaster 19464FM Pro Ultra Universal Dual Flush Syphon, Black
- Close Coupling Kit for WC Toilet Pan Cistern Doughnut Fixings Plate Donut

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-05-07*