---
product_id: 418372818
title: "Replacement for Spa Filter PRB25-IN, Unicel C-4326, Filbur FC-2375, Pentair R173429, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, Guardian 413-106, 5X13 Drop in Spa Filter, 1 Pack"
brand: "toread"
price: "€ 87.76"
currency: EUR
in_stock: true
reviews_count: 13
category: "Toread"
url: https://www.desertcart.hr/products/418372818-replacement-for-spa-filter-prb25-in-unicel-c-4326-filbur
store_origin: HR
region: Croatia
---

# 21-40% More Efficient Filtration Area 25% Thicker Filtration Fabric NSF/ANSI 50 Certified Safety Replacement for Spa Filter PRB25-IN, Unicel C-4326, Filbur FC-2375, Pentair R173429, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, Guardian 413-106, 5X13 Drop in Spa Filter, 1 Pack

**Brand:** toread
**Price:** € 87.76
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate Your Spa Game with Crystal-Clear Confidence!

## Quick Answers

- **What is this?** Replacement for Spa Filter PRB25-IN, Unicel C-4326, Filbur FC-2375, Pentair R173429, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, Guardian 413-106, 5X13 Drop in Spa Filter, 1 Pack by toread
- **How much does it cost?** € 87.76 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/418372818-replacement-for-spa-filter-prb25-in-unicel-c-4326-filbur)

## Best For

- toread enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Fits a wide range of popular spa filter models including PRB25-IN, Unicel C-4326, and Pentair R173429 for seamless replacement.
- • **Durable Reinforced Design:** 25% thicker filtration fabric with heavy chlorine resistance and break-resistant end caps ensures long-lasting, high-performance filtration.
- • **Risk-Free Purchase Confidence:** Backed by a 6-month return policy and 12-month warranty with dedicated US-based customer support for worry-free spa maintenance.
- • **Certified Clean Water Assurance:** NSF/ANSI 50 certification guarantees safe, fresh, and crystal-clear spa water for your family’s health and happiness.
- • **Advanced Trilobal Fabric Technology:** Delivers 21-40% higher filtration capacity with less pressure drop, reducing cleaning frequency and boosting efficiency.

## Overview

The TOREAD Replacement Spa Filter TRF-4326 is a premium, NSF/ANSI 50 certified cartridge designed for superior filtration performance and durability. Compatible with multiple leading spa filter models, it features a reinforced structure with 25% thicker fabric and advanced trilobal fibers that increase filtration efficiency by up to 40%. This filter ensures cleaner, healthier water with less maintenance, backed by a 12-month warranty and responsive customer support.

## Description

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

Review: Absolutely fantastic... - I use these filters in my Jacuzzi J-200 series hot-tub, cleaning monthly and replacing annually. These are every bit as efficient as the Jacuzzi branded item and a fraction of the price, and fits perfectly. £35 for 2 with next day delivery. Quite frankly I'm left scratching my head as to how you can do this for the money!
Review: Does the job - Good.

## Features

- 【NSF/ANSI 50 CERTIFIED】 TOREAD Pool and Spa filter is tested and certified by IAPMO against NSF/ANSI 50. The filter with certified safe materials provides you with clean, fresh and clear water. Only select certified filters for your family to ensure the safety, health and happiness of your loved ones.
- REPLACEMENT MODELS】TOREAD TRF-4326 filter compatible PRB25-IN, Unicel C-4326, FC-2370, SD-00196, SD-00657, 303909, M-4326, 8172500, PLE-051-9174, PLE-051-9395, 645544023759, P-4326. Length: 13 5/16”; Outside Diameter: 5”; Top Hole: 2 1/8” Open; Bottom Hole: 2 1/8” Open. NOTE: This is a compatible spare part and the manufacturers' names and part numbers have been used for reference purposes only. TOREAD is an independent brand.
- REINFORCEMENT STRUCTURE】With 25% thicker filtration fabric, heavy chlorine resistant and break-resistant end caps and reinforced center support, the filter delivers high powered propulsion flow, and crystal clear water, providing you with a relaxed and healthy enjoyment.
- MORE EFFICIENT FILTRATION AREA】Uniformity and high-performance trilobal fabric has 21-40% higher capacity compared with common point-bond fabric. The trilobal shape of fabric fibers also helps catch particles, increases efficiency without the pressure drop penalty, and helps reduce filter cleanining frequency.
- 6-MONTH RETURN POLICY GUARANTEED!】Product Life Time Warranty on Every Filter Confirmed with Defects in Material, Workmanship, and Any Filter Caused Malfunction within Each Filter's 12-Month Service Life. We promise a risk-free shopping experience backed up with our reliable customer service and technical support team which is located to Los Angeles.
- Packaging May Vary

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07ZKJYRQ7 |
| Best Sellers Rank | 9,599 in Garden ( See Top 100 in Garden ) 19 in Pool & Hot Tub Filter Cartridges |
| Customer Reviews | 4.6 4.6 out of 5 stars (2,098) |
| Date First Available | 23 Oct. 2019 |
| Item display length | 13.3 inches |
| Item model number | TRF-4326 |
| Manufacturer | TOREAD |
| Material type | Crystal |
| Part number | 1 |
| Product Dimensions | 13.31 x 13.41 x 35.28 cm; 453.59 g |

## Images

![Replacement for Spa Filter PRB25-IN, Unicel C-4326, Filbur FC-2375, Pentair R173429, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, Guardian 413-106, 5X13 Drop in Spa Filter, 1 Pack - Image 1](https://m.media-amazon.com/images/I/71K4EfPuGCL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Does this or any other fit the J300 series in the Jacuzzi spas, specifically J335 thanks**
A: Dear customer,Thank you for your question.Unfortunately, we did not find the filter of the model you mentioned. The size of our product is Length: 13 5/16”; Outside Diameter: 5”; Top Hole: 2 1/8” Open; Bottom Hole: 2 1/8” Open. Please check that your used filter matches the size of this filter. We hope this information is useful.

**Q: Can you use these in an Artic spa?**
A: Yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ Absolutely fantastic...
*by M***N on 15 March 2022*

I use these filters in my Jacuzzi J-200 series hot-tub, cleaning monthly and replacing annually. These are every bit as efficient as the Jacuzzi branded item and a fraction of the price, and fits perfectly. £35 for 2 with next day delivery. Quite frankly I'm left scratching my head as to how you can do this for the money!

### ⭐⭐⭐⭐⭐ Does the job
*by J***H on 13 December 2025*

Good.

### ⭐⭐⭐⭐⭐ Good value for money
*by S***S on 3 September 2025*

Good value for money compared to other similar filters

## Frequently Bought Together

- TOREAD Replacement for Spa Filter PRB25-IN, Unicel C-4326, Filbur FC-2375, Pentair R173429, 3005845, 17-2327, 100586, 33521, 25392, 817-2500, Guardian 413-106, 5X13 Drop in Spa Filter, 1 Pack
- Clearwater CH0019 1 kg Multifunction Chlorine Tablets, 4-in-1 Dispenser Tablets (Sanitiser, Stabiliser, Algaecide and Clarifier) for Pools and Hot Tubs, 50 x 20 g, White
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**Shop now:** [https://www.desertcart.hr/products/418372818-replacement-for-spa-filter-prb25-in-unicel-c-4326-filbur](https://www.desertcart.hr/products/418372818-replacement-for-spa-filter-prb25-in-unicel-c-4326-filbur)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-19*