---
product_id: 522536350
title: "Finest-Filters 4 x Hot Tub Spa Water Filter Cartridge Replacement Compatible With Pleatco PRB50IN, Unicel C4950, Darlly SC706, 40506 & Filbur FC2390 Hot Tub Water Filters"
brand: "finest-filters"
price: "A$225"
currency: AUD
in_stock: true
reviews_count: 3
category: "Finest Filters"
url: https://www.desertcart.com.au/products/522536350-finest-filters-4-x-hot-tub-spa-water-filter-cartridge
store_origin: AU
region: Australia
---

# Trilobal fabric for max surface area High sediment holding capacity Easy-to-clean, extends filter life Finest-Filters 4 x Hot Tub Spa Water Filter Cartridge Replacement Compatible With Pleatco PRB50IN, Unicel C4950, Darlly SC706, 40506 & Filbur FC2390 Hot Tub Water Filters

**Brand:** finest-filters
**Price:** A$225
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your spa game with crystal-clear water—because your relaxation deserves the best!

## Quick Answers

- **What is this?** Finest-Filters 4 x Hot Tub Spa Water Filter Cartridge Replacement Compatible With Pleatco PRB50IN, Unicel C4950, Darlly SC706, 40506 & Filbur FC2390 Hot Tub Water Filters by finest-filters
- **How much does it cost?** A$225 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/522536350-finest-filters-4-x-hot-tub-spa-water-filter-cartridge)

## Best For

- finest-filters enthusiasts

## Why This Product

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

## Key Features

- • **Optimized Flow Rate:** Maintains strong water circulation without sacrificing filtration power
- • **Bulk Pack Convenience:** Set of 4 cartridges ensures uninterrupted spa enjoyment
- • **Longer Filter Lifespan:** Innovative fabric releases impurities easily, reducing replacement frequency
- • **Universal Compatibility:** Fits Pleatco PRB50IN, Unicel C4950, Darlly SC706, Filbur FC2390 & more
- • **Maximized Filtration Efficiency:** Trilobal fabric design boosts surface area for superior water clarity

## Overview

Finest-Filters 4-pack replacement cartridges feature advanced trilobal fabric technology for enhanced filtration surface area and sediment capacity. Compatible with major hot tub filter models, these cartridges ensure optimal water flow and easy cleaning, extending filter life and maintaining pristine spa water.

## Description

Great prices on your favourite Gardening brands, and free delivery on eligible orders.

Review: Perfect - Perfect
Review: Good quality - Good quality

## Features

- 4 x Replacement Spa / Hot Tub filter cartridge compatible with the following filter models: Pleatco PRB50-IN, Unicel C-4950, Filbur FC-2390, Darlly SC-706
- The Hot Tub water filter cartridges are constructed from trilobal fabric which allows for a massive filter surface area and sediment holding capacity without compromising the flow rate
- The trilobal construction of the spa pool water filter cartridges also makes it easy to release impurities when cleaning the filter, allowing for a longer filter service life.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 33.8 x 12.5 x 12.5 cm |
| Part number | FF-PRB50IN4 |
| Material type | plastic |
| Power source type | ac |
| Manufacturer | Finest-Filters |
| Item model number | FF-PRB50IN4 |
| ASIN | B0BVWK21Q7 |

## Images

![Finest-Filters 4 x Hot Tub Spa Water Filter Cartridge Replacement Compatible With Pleatco PRB50IN, Unicel C4950, Darlly SC706, 40506 & Filbur FC2390 Hot Tub Water Filters - Image 1](https://m.media-amazon.com/images/I/71H63q8rMyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect
*by G***F on 2 May 2025*

Perfect

### ⭐⭐⭐⭐⭐ Good quality
*by S***. on 22 February 2025*

Good quality

### ⭐⭐⭐⭐⭐ Good quality
*by M***G on 23 August 2024*

I bought these for our hot tub as replacements for some others I'd bought from another supplier which had started to deteriorate on the ends after one use. These ones though after one use and a clean still look like brand new. I got a 4 pack as they were better value but also to have the flexibility of rotation. They feel like good quality filters and do a great job of keeping the hot tub water clear so I am very pleased with the purchase.

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**Shop now:** [https://www.desertcart.com.au/products/522536350-finest-filters-4-x-hot-tub-spa-water-filter-cartridge](https://www.desertcart.com.au/products/522536350-finest-filters-4-x-hot-tub-spa-water-filter-cartridge)

---

*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-09*