---
product_id: 48677967
title: "Fluidmaster PRO45B Fill Valve with Brass Shank - Black"
brand: "fluidmaster"
price: "272 zł"
currency: PLN
in_stock: true
reviews_count: 12
category: "Fluidmaster"
url: https://www.desertcart.pl/products/48677967-fluidmaster-pro45b-fill-valve-with-brass-shank-black
store_origin: PL
region: Poland
---

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

**Brand:** fluidmaster
**Price:** 272 zł
**Availability:** ✅ In Stock

## Summary

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

## Quick Answers

- **What is this?** Fluidmaster PRO45B Fill Valve with Brass Shank - Black by fluidmaster
- **How much does it cost?** 272 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/48677967-fluidmaster-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

- • **Fits Like a Glove:** Universal compatibility with all toilet brands for hassle-free replacement.
- • **Trusted by the Pros:** Preferred by professional plumbers for reliability and ease of installation.
- • **Peace of Mind Guaranteed:** Backed by a 5-year assurance for long-term confidence.
- • **Whisper-Quiet Efficiency:** Ultra-quiet operation keeps your bathroom peaceful and serene.
- • **Built to Last, Designed to Perform:** Heavy-duty brass shank ensures unmatched durability and leak resistance.

## Overview

The Fluidmaster PRO45B Fill Valve features a heavy-duty brass shank for superior durability and a watertight seal, fitting all toilet brands with ultra-quiet operation. Trusted by professional plumbers and backed by a 5-year warranty, it offers easy installation and long-lasting performance to prevent leaks and costly water damage.

## Description

From the manufacturer

Review: Well made, easy to get a water tight seal. - It is worth paying a few pounds extra to get a well made valve like this rather than a cheap model - a cheap one failed in the night after 6 months and brought my kitchen ceiling down. The bottom flange is injection moulded onto the brass inlet, making it watertight and much more rigid than cheap models. The rubber washer seals between the flange and cistern base and you can get a good seal just by turning the nut hand tight. On the cheap models, the flange is loose and the seal is made by compressing a tapered rubber washer between the inlet pipe and cistern entry hole - it needs a lot more pressure to get a seal and is prone to leaking.
Review: Easy to fit - Ordered this as a like for like replacement after the rubber seal on the old one (which I would guess is 15 years old or more) gave out. Easy to install and works straight away without too much fiddling. Relatively adjustable. I would prefer a metal backnut but the plastic one supplied with this kit is perfectly serviceable

## 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 |
| Batteries Required? | No |
| Batteries included? | No |
| Certification | CSA, ULC |
| Colour | Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,597) |
| Date First Available | 17 Feb. 2011 |
| Included Components | valve; fittings; |
| Item Package Quantity | 1 |
| Item Weight | 299 g |
| Item model number | PRO45B |
| Manufacturer | Fluidmaster |
| Material | Brass |
| Measurement System | Metric |
| Number of Pieces | 1 |
| Part Number | PRO45B |
| Product Dimensions | 9 x 7.8 x 32.2 cm; 299.37 g |
| Size | Pack of 1 |
| Style | Pack of 1 |

## 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:** 0.5 Inches
- **Outlet connection type:** Barb
- **Specification met:** CSA, ULC

## Images

![Fluidmaster 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

### ⭐⭐⭐⭐⭐ Well made, easy to get a water tight seal.
*by R***S on 24 February 2026*

It is worth paying a few pounds extra to get a well made valve like this rather than a cheap model - a cheap one failed in the night after 6 months and brought my kitchen ceiling down. The bottom flange is injection moulded onto the brass inlet, making it watertight and much more rigid than cheap models. The rubber washer seals between the flange and cistern base and you can get a good seal just by turning the nut hand tight. On the cheap models, the flange is loose and the seal is made by compressing a tapered rubber washer between the inlet pipe and cistern entry hole - it needs a lot more pressure to get a seal and is prone to leaking.

### ⭐⭐⭐⭐⭐ Easy to fit
*by E***B on 26 October 2025*

Ordered this as a like for like replacement after the rubber seal on the old one (which I would guess is 15 years old or more) gave out. Easy to install and works straight away without too much fiddling. Relatively adjustable. I would prefer a metal backnut but the plastic one supplied with this kit is perfectly serviceable

### ⭐⭐⭐⭐ 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 Poland*
*Store origin: PL*
*Last updated: 2026-03-17*