---
product_id: 8041282
title: "RainSoft Compatible P-12 # 9875 Replacement Water Filter - Fits 9878, 9879, 17561, 17366 , 13199"
brand: "wfo"
price: "€ 114.17"
currency: EUR
in_stock: true
reviews_count: 8
category: "Wfo"
url: https://www.desertcart.fr/products/8041282-rainsoft-compatible-p-12-9875-replacement-water-filter-fits-9878
store_origin: FR
region: France
---

# 99.9% impurity removal Durable carbon fiber build Universal fit for 5+ models RainSoft Compatible P-12 # 9875 Replacement Water Filter - Fits 9878, 9879, 17561, 17366 , 13199

**Brand:** wfo
**Price:** € 114.17
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate your water game—because your health deserves the best!

## Quick Answers

- **What is this?** RainSoft Compatible P-12 # 9875 Replacement Water Filter - Fits 9878, 9879, 17561, 17366 , 13199 by wfo
- **How much does it cost?** € 114.17 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/8041282-rainsoft-compatible-p-12-9875-replacement-water-filter-fits-9878)

## Best For

- wfo enthusiasts

## Why This Product

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

## Key Features

- • **Cost-Smart Upgrade:** Save big without sacrificing quality—premium filtration at a fraction of the original price.
- • **Trusted by Thousands:** 4.6-star rating from 290+ users proves this filter delivers consistent, reliable performance.
- • **Crystal-Clear Hydration:** Experience water so pure, every sip feels like a fresh mountain stream.
- • **Effortless Compatibility:** Fits seamlessly with RainSoft models 9878, 9879, 17561, 17366, and 13199—no guesswork needed.
- • **Premium Carbon Fiber Filtration:** Advanced solid carbon block technology traps contaminants for cleaner, better-tasting water.

## Overview

The RainSoft Compatible P-12 #9875 Replacement Water Filter features a solid carbon fiber block that effectively removes impurities for cleaner, better-tasting water. Designed to fit multiple RainSoft models (9878, 9879, 17561, 17366, 13199), it offers a cost-effective alternative to expensive OEM filters without compromising quality. With a compact 4.9"x4.9"x6" size and a strong 4.6-star rating from over 290 customers, this filter is a trusted choice for enhancing your home water filtration system.

## Description

Solid carbon block replacement water filter cartridge.

Review: Filter for Rainsoft softener - Fit perfect. Great filtration.
Review: Great Value / Quality Product - Even though this filter really did not come with instructions. I googled the instructions and it was a breeze the water tasted great and I had my water tested and the quality is excellent. I am sorry but I really can't afford to pay Rainsoft $99 dollars for a filter and $125 for the service this is a deal. Also, the company has a website with a link on information on their filters and excellent customer service.

## Features

- Save!!
- RainSoft Compatible P-12 # 9875 Replacement Water Filter - Fits 9878, 9879, 17561, 17366 , 13199

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000H4NBKU |
| Best Sellers Rank | #309,274 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,019 in Replacement Under-Sink Water Filters |
| Brand | WFO |
| Brand Name | WFO |
| Customer Reviews | 4.6 out of 5 stars 290 Reviews |
| Item Dimensions D x W x H | 4.9"D x 4.9"W x 6"H |
| Manufacturer | WFO |
| Manufacturer Part Number | 5I-ZZL3-YQE5 |
| Material | Carbon Fiber |
| Material Type | Carbon Fiber |
| Model Number | P-12 # 9875 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Product Benefits | Removes impurities and contaminants for cleaner, better-tasting water |
| Product Dimensions | 4.9"D x 4.9"W x 6"H |
| Set Name | 9878, 9879, 17561, 17366, 13199 |
| Unit Count | 1 Count |

## Product Details

- **Material:** Carbon Fiber
- **Product Dimensions:** 4.9"D x 4.9"W x 6"H
- **Product Benefits:** Removes impurities and contaminants for cleaner, better-tasting water
- **Brand:** WFO
- **Unit Count:** 1 Count

## Images

![RainSoft Compatible P-12 # 9875 Replacement Water Filter - Fits 9878, 9879, 17561, 17366 , 13199 - Image 1](https://m.media-amazon.com/images/I/51IJxOvrdXL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Filter for Rainsoft softener
*by A***K on January 20, 2025*

Fit perfect. Great filtration.

### ⭐⭐⭐⭐⭐ Great Value / Quality Product
*by J***J on August 1, 2017*

Even though this filter really did not come with instructions. I googled the instructions and it was a breeze the water tasted great and I had my water tested and the quality is excellent. I am sorry but I really can't afford to pay Rainsoft $99 dollars for a filter and $125 for the service this is a deal. Also, the company has a website with a link on information on their filters and excellent customer service.

### ⭐⭐⭐⭐ UP DATE. Solid filter. User error, of course.
*by O***R on October 17, 2010*

I had purchased this product for my Rainsoft under-the-counter water filter. When I went to install the filter, I noticed there were no intallation instuctions included with the filter, but it seemed easy enough: unscrew the old filter and screw in the new filter. The Rainsoft filter that was being replaced looked similar, but this new filter had a plastic webbing surrounding the filter. So, I installed the filter and NOTHING. No water was able to filter through the new filter. I left the filtered water "open" for 30 minutes, but no water? So I thought that the plastic webbing might have been just for transport of the filter and was holding the filter material too tight. Again, no instuctions to indicate one way or another, but the current situation was not working. So, I cut some slits in the webbing and reinstallled the filter. It began to work and filtered water began to run through and out the faucet. Three days later, no water flowing. I was tired of this "guessing" how a simple filter should work, so I e-mailed my questions to the company. No response as of ten days. Therefor, I can not recommend this product, or this company, as neither seem to function as advertised. BUYER BEWARE! UPDATE. With the help of the Internet for instructions, I was able to put this filter in place. Works fine. I still believe that the should be better instruction included with the product.

## Frequently Bought Together

- RainSoft Compatible P-12 # 9875 Replacement Water Filter - Fits 9878, 9879, 17561, 17366 , 13199
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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-07-06*