---
product_id: 87161942
title: "Hydronix HF45-20BLBK34PR Water Filter Housing 20\" - 3/4\" Ports w/PR"
brand: "hydronix"
price: "€ 238.44"
currency: EUR
in_stock: true
category: "Hydronix"
url: https://www.desertcart.hr/products/87161942-hydronix-hf45-20blbk34pr-water-filter-housing-20-3-4-ports
store_origin: HR
region: Croatia
---

# Fits any 4.5"x20" filter 3/4" ports with pressure relief Durable polypropylene build Hydronix HF45-20BLBK34PR Water Filter Housing 20" - 3/4" Ports w/PR

**Brand:** hydronix
**Price:** € 238.44
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water game with flow and durability that professionals trust!

## Quick Answers

- **What is this?** Hydronix HF45-20BLBK34PR Water Filter Housing 20" - 3/4" Ports w/PR by hydronix
- **How much does it cost?** € 238.44 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/87161942-hydronix-hf45-20blbk34pr-water-filter-housing-20-3-4-ports)

## Best For

- hydronix enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Crafted from reinforced polypropylene to withstand industrial and commercial demands.
- • **Optimized Flow Design:** Extra-wide housing and large internal ports maximize water flow without compromise.
- • **Versatile Application:** Perfect for hydroponics, whole house systems, and commercial setups—join the elite water quality movement.
- • **Pressure Relief Button:** Quick and safe pressure release for hassle-free maintenance and longevity.
- • **Universal Compatibility:** Seamlessly fits all standard 4.5" x 20" filters for ultimate flexibility.

## Overview

The Hydronix HF45-20BLBK34PR is a robust 20" Big Blue water filter housing designed for high flow rates and broad compatibility with any 4.5" x 20" filter cartridge. Featuring NSF Standard 42 certified materials and a durable polypropylene construction, it includes 3/4" female NPT ports and a pressure relief button for safe, efficient operation. Ideal for hydroponics, whole house, commercial, and industrial water filtration needs.

## Description

The Hydronix HF45-20BLBK34PR Big Blue size 20" Filter Housing is an extra-wide housing that accommodates large 4.5" wide filters for increased flow. This housing has a pressure relief button on the cap. It is made of a durable, reinforced polypropylene that is usable with a variety of none corrosive chemicals. The housing cap is a high-flow polypropylene cap with 3/4" external female NPT ports and large internal ports, allowing water to pass through rapidly. This Hydronix Big Blue size filters is an excellent choice for whole house or commercial applications where high flow rates are required. ** DOES NOT include filter cartridges, brackets, fittings, or mounting screws.**.

## Features

- Uses any brand 4.5" x 20" filter
- NSF standard 42 certified material
- 3/4" Ports with Pressure Relief Button
- Durable and high quality Polypropylene
- Perfect for Hydroponics, Whole House, Commercial or Industrial Use

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0788DGDW9 |
| Best Sellers Rank | #1,656,855 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,612 in Replacement Pitcher Water Filters |
| Brand | Hydronix |
| Brand Name | Hydronix |
| External Testing Certification | NSF |
| Included Components | Filters |
| Item Type Name | Water Filter Housing 20" Big Blue Size - 3/4" Ports w/ PR |
| Manufacturer | Hydronix |
| Manufacturer Part Number | HX-HF45-20BLBK34PR |
| Model Number | HX-HF45-20BLBK34PR |
| Number of Items | 1 |
| Product Benefits | Increases water flow rate and reduces aesthetic impurities like chlorine taste and odor, improving water clarity. Product Benefits Increases water flow rate and reduces aesthetic impurities like chlorine taste and odor, improving water clarity. See more |
| UPC | 693614032828 |
| Unit Count | 1 Count |

## Images

![Hydronix HF45-20BLBK34PR Water Filter Housing 20" - 3/4" Ports w/PR - Image 1](https://m.media-amazon.com/images/I/51s0L7dXInL.jpg)
![Hydronix HF45-20BLBK34PR Water Filter Housing 20" - 3/4" Ports w/PR - Image 2](https://m.media-amazon.com/images/I/61Y4VcVBAlL.jpg)
![Hydronix HF45-20BLBK34PR Water Filter Housing 20" - 3/4" Ports w/PR - Image 3](https://m.media-amazon.com/images/I/51LNCeTltuL.jpg)

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**Shop now:** [https://www.desertcart.hr/products/87161942-hydronix-hf45-20blbk34pr-water-filter-housing-20-3-4-ports](https://www.desertcart.hr/products/87161942-hydronix-hf45-20blbk34pr-water-filter-housing-20-3-4-ports)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-25*