---
product_id: 31988653
title: "Rainsoft COMP-P-12 Hydrefiner Compatible Replacement Water Filter Cartridge"
brand: "rainsoft"
price: "16799 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Rainsoft"
url: https://www.desertcart.is/products/31988653-rainsoft-comp-p-12-hydrefiner-compatible-replacement-water-filter-cartridge
store_origin: IS
region: Iceland
---

# 6-12 months filter life 10-micron carbon block filtration 1/2" UNS compression threaded connection Rainsoft COMP-P-12 Hydrefiner Compatible Replacement Water Filter Cartridge

**Brand:** rainsoft
**Price:** 16799 kr
**Availability:** ✅ In Stock

## Summary

> 💧 Refresh your routine with every drop—because your water deserves the best.

## Quick Answers

- **What is this?** Rainsoft COMP-P-12 Hydrefiner Compatible Replacement Water Filter Cartridge by rainsoft
- **How much does it cost?** 16799 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/31988653-rainsoft-comp-p-12-hydrefiner-compatible-replacement-water-filter-cartridge)

## Best For

- rainsoft enthusiasts

## Why This Product

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

## Key Features

- • **Compact & Compatible:** Precisely sized at 4.9" diameter x 6" height, fits seamlessly with Rainsoft P-12 Hydrefiner systems.
- • **Crystal-Clear Hydration:** Advanced 10-micron carbon block media reduces chlorine & VOCs for fresher, cleaner water.
- • **Effortless Installation:** User-friendly 1/2" UNS compression female threaded design makes replacement a breeze—no plumber needed.
- • **Long-Lasting Performance:** Reliable 6-12 month lifespan keeps your water tasting great without frequent changes.
- • **Stay Ahead with Smart Reminders:** Includes a handy reminder magnet so you never miss your next filter swap—because clean water waits for no one.

## Overview

The Rainsoft COMP-P-12 Hydrefiner Replacement Water Filter Cartridge features a 10-micron carbon block filter that effectively reduces chlorine and VOCs, improving water taste and odor. Designed for easy installation with a 1/2" UNS compression female threaded connection, it fits Rainsoft P-12 Hydrefiner systems perfectly. With a compact size of 4.9" diameter by 6" height and a filter life of 6-12 months, this cartridge ensures long-lasting, high-quality water filtration backed by a 30-day warranty.

## Description

Description:?Rainsoft P-12 Hydrefiner Replacement Filter Specs: Cartridge Size: 4-9/16" Diameter x 6" Long Connection: 1/2" UNS Compression Female Threaded Micron: 10 Nominal Filter Media: Carbon Block Filter Life: 6-12 months

Review: Perfect! Just PERFECT! - Super easy to install and even came with a reminder magnet! I didn't have to run water or ice cube maker excessively long as with some others to "shake" the extra carbon off. Very pleased with purchase! Thank you! BTW, I'm a former RainSoft distributor so I know of what I speak! ☺
Review: Fits and works great - This water filter fits and works great at a great price. Fast delivery as well!

## Features

- New - Retail
- 30-Day Warranty
- Rainsoft P-12
- Rainsoft P-12 Hydrefiner Compatible Replacement Water Filter Cartridge

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BYNW4O2 |
| Best Sellers Rank | #629,890 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #3,916 in Replacement Under-Sink Water Filters |
| Brand | Rainsoft |
| Customer Reviews | 4.3 4.3 out of 5 stars (115) |
| Date First Available | November 10, 2009 |
| Item Weight | 5 pounds |
| Item model number | P 12 |
| Manufacturer | Rainsoft |
| Material | Carbon |
| Number of Items | 1 |
| Product Benefits | Improves taste and odor of water by reducing chlorine and VOCs |
| Product Dimensions | 4.9"D x 4.9"W x 6"H |
| UPC | 851905128661 132017520025 163120787678 |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Rainsoft
- **Material:** Carbon
- **Product Benefits:** Improves taste and odor of water by reducing chlorine and VOCs
- **Product Dimensions:** 4.9"D x 4.9"W x 6"H
- **UPC:** 851905128661 132017520025 163120787678

## Images

![Rainsoft COMP-P-12 Hydrefiner Compatible Replacement Water Filter Cartridge - Image 1](https://m.media-amazon.com/images/I/31L6dlGG0mL.jpg)
![Rainsoft COMP-P-12 Hydrefiner Compatible Replacement Water Filter Cartridge - Image 2](https://m.media-amazon.com/images/I/41L1FvjLp2L.jpg)
![Rainsoft COMP-P-12 Hydrefiner Compatible Replacement Water Filter Cartridge - Image 3](https://m.media-amazon.com/images/I/61k23xszC3L.jpg)

## Questions & Answers

**Q: Where is this filter made?**
A: Hi GaGa:            This filter is assembled in Asia using US USF certified carbon. We use some of the same factories as the top tier US filter manufacturers.Best regards,Customer Service Center

**Q: How long are these supposed to last? We bought a house with this on it, and there's no Rainsoft dealer around.**
A: I replace once a year. Hard to tell really. Supposed to be 5 gallons a day for a year. I don't use that much. These are less than half the price Rainsoft charges and work well.
Just replace it and put the sticker on with the date and start fresh I would recommend.

**Q: Is this an official rainsoft oem p-12 filter or an after market copy?  will using this filter void my manufacturer warranty?**
A: Hi David: As noted this is a compatible replacement and not OEM. The use of a compatible replacement does not itself void the manufacturers warranty. Thank You, WaterFiltersOnline

**Q: what does this filter remove from the water?**
A: Calcium build up and any sentiments in the water.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect! Just PERFECT!
*by L***E on January 3, 2017*

Super easy to install and even came with a reminder magnet! I didn't have to run water or ice cube maker excessively long as with some others to "shake" the extra carbon off. Very pleased with purchase! Thank you! BTW, I'm a former RainSoft distributor so I know of what I speak! ☺

### ⭐⭐⭐⭐⭐ Fits and works great
*by M***. on January 14, 2019*

This water filter fits and works great at a great price. Fast delivery as well!

### ⭐⭐⭐⭐ Fits
*by R***N on December 17, 2025*

Fit with no problem but the gasket inner diameter was too large. Used the old one.

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**Shop now:** [https://www.desertcart.is/products/31988653-rainsoft-comp-p-12-hydrefiner-compatible-replacement-water-filter-cartridge](https://www.desertcart.is/products/31988653-rainsoft-comp-p-12-hydrefiner-compatible-replacement-water-filter-cartridge)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-20*