---
product_id: 256956212
title: "CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit with Pressure Relief Valve, FNPT X FNPT, 3/4\" Service Installation Valve for Rheem, Rinnai, Takagi, Ecosmart"
brand: "cmi"
price: "529.81 DT"
currency: TND
in_stock: true
reviews_count: 5
category: "Cmi"
url: https://www.desertcart.tn/products/256956212-cmi-kahenian-3-4-inch-tankless-water-heater-isolation-service
store_origin: TN
region: Tunisia
---

# Includes pressure relief valve for quick, safe connection 3/4 inch FNPT threaded connections Brass material meets ANSI/NSF low lead standards CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit with Pressure Relief Valve, FNPT X FNPT, 3/4" Service Installation Valve for Rheem, Rinnai, Takagi, Ecosmart

**Brand:** cmi
**Price:** 529.81 DT
**Availability:** ✅ In Stock

## Summary

> 🚿 Upgrade your flow game with pro-grade ease and safety!

## Quick Answers

- **What is this?** CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit with Pressure Relief Valve, FNPT X FNPT, 3/4" Service Installation Valve for Rheem, Rinnai, Takagi, Ecosmart by cmi
- **How much does it cost?** 529.81 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/256956212-cmi-kahenian-3-4-inch-tankless-water-heater-isolation-service)

## Best For

- cmi enthusiasts

## Why This Product

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

## Key Features

- • **Safety First:** Built-in pressure relief valve ensures reliable, worry-free operation
- • **Risk-Free Purchase:** 30-day money-back guarantee—confidence in every connection
- • **Effortless Installation:** Standard threaded ports + FREE PTFE tape for a seamless setup
- • **Universal Compatibility:** Fits top tankless brands like Rheem, Rinnai, Takagi & more
- • **Industry-Grade Durability:** Premium brass construction compliant with ANSI/NSF & UPC codes

## Overview

The CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit is a premium brass plumbing solution designed for quick installation and universal compatibility with leading tankless water heater brands. Featuring FNPT threaded connections and an integrated pressure relief valve, it meets stringent ANSI/NSF low lead standards, ensuring durability and safety. Backed by a 30-day money-back guarantee, this kit is the smart choice for professionals and home renovators aiming to optimize water heater performance.

## Description

Kahenian has been providing high-quality Tankless Water Heater Kits for over 5 years. Each item is reviewed to make sure they meet and conform to industry standards. They go hand-in-hand with any home renovation project and are excellent if you want to improve the overall water flow of your Tankless Water Heaters. Know that when you purchase from Kahenian you can buy with confidence.

Review: Tankless water heater bypass kit - This is exactly as described, it arrived as promised, appears to be well made, and a good value for the money I just wish they would put a packing slip in the package. This came in the manufacturers packaging 👍 Limited or no single use plastic 👍 No polystyrene foam packing (styrofoam) 👍👍
Review: Makes flushing and cleaning your Instant Water heater very easy - Good quality solid brass construction. I had my on-demand water heater installed over 14 years ago and the plumber did not have these bypass valves on it. I only just became aware of the need for yearly flushing on these water heaters recently. Watched some YouTube videos and saw similar bypass valves so I ordered these on desertcart. With a little copper plumbing skills including soldering, I had these valves installed in about an hour. Then ran my vinegar solution thru the water heater for about 2 hours. I was amazed at how much build up was washed out of the heater. My pressure seems better and my water heats up quicker than it has in years.

## Features

- ✔EASY INSTALLATION- Hot and Cold installation service valves come included with Standard port threaded connections. Comes with FREE PTFE Thread Seal tape for your convenience.
- ✔MEET INSDUSTRY STANDARDS- Material is made of clean brass for low lead codes and meets ANSI/NSF standards and UPC codes
- ✔QUICK CONNECTION- Pressure Relief Valve comes included for connection to hot valve
- ✔COMPATIBILITY- Connects to most major tankless water heater brands such as Rheem, Rinnai, Bosch, Ecosmart, Takagi, Navien, and Nortiz
- ✔30-DAY MONEY BACK- If you are not 100% satisfied with the product just return the product. No questions asked. Your satisfaction is always our priority

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07WZW336B |
| Brand | CMI |
| Brand Name | CMI |
| Connector Type | Threaded |
| Customer Reviews | 4.6 out of 5 stars 209 Reviews |
| Exterior Finish | Brass |
| Exterior finish | Brass |
| Inlet Connection Size | 0.75 Millimeters |
| Inlet Connection Type | FNPT |
| Inlet connection size | 0.75 Millimeters |
| Inlet connection type | FNPT |
| Manufacturer | Kahenian |
| Manufacturer Part Number | 3005IPS |
| Material | Brass |
| Material Type | Brass |
| Model Number | 3005IPS |
| Number of Ports | 2 |
| Outlet Connection Size | 0.75 Inches |
| Outlet Connection Type | FNPT |
| Outlet connection type | FNPT |
| Size | 1.91 cm |
| Specification Met | CE, RoHS |
| Thread Size | 3/4 inch NPT |
| Thread Type | NPT |
| UPC | 847877053032 847877052967 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** CMI
- **Exterior finish:** Brass
- **Inlet connection size:** 0.75 Millimeters
- **Inlet connection type:** FNPT
- **Material:** Brass

## Images

![CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit with Pressure Relief Valve, FNPT X FNPT, 3/4" Service Installation Valve for Rheem, Rinnai, Takagi, Ecosmart - Image 1](https://m.media-amazon.com/images/I/715ImnVeSdL.jpg)
![CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit with Pressure Relief Valve, FNPT X FNPT, 3/4" Service Installation Valve for Rheem, Rinnai, Takagi, Ecosmart - Image 2](https://m.media-amazon.com/images/I/71l2+WO61xL.jpg)
![CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit with Pressure Relief Valve, FNPT X FNPT, 3/4" Service Installation Valve for Rheem, Rinnai, Takagi, Ecosmart - Image 3](https://m.media-amazon.com/images/I/81c3jysQ3KL.jpg)
![CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit with Pressure Relief Valve, FNPT X FNPT, 3/4" Service Installation Valve for Rheem, Rinnai, Takagi, Ecosmart - Image 4](https://m.media-amazon.com/images/I/716wL9PjZUL.jpg)
![CMI Kahenian 3/4 inch Tankless Water Heater Isolation Service Valve Flush Kit with Pressure Relief Valve, FNPT X FNPT, 3/4" Service Installation Valve for Rheem, Rinnai, Takagi, Ecosmart - Image 5](https://m.media-amazon.com/images/I/81o4zvGzSlL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Tankless water heater bypass kit
*by K***W on 5 February 2025*

This is exactly as described, it arrived as promised, appears to be well made, and a good value for the money I just wish they would put a packing slip in the package. This came in the manufacturers packaging 👍 Limited or no single use plastic 👍 No polystyrene foam packing (styrofoam) 👍👍

### ⭐⭐⭐⭐⭐ Makes flushing and cleaning your Instant Water heater very easy
*by D***R on 18 March 2024*

Good quality solid brass construction. I had my on-demand water heater installed over 14 years ago and the plumber did not have these bypass valves on it. I only just became aware of the need for yearly flushing on these water heaters recently. Watched some YouTube videos and saw similar bypass valves so I ordered these on Amazon. With a little copper plumbing skills including soldering, I had these valves installed in about an hour. Then ran my vinegar solution thru the water heater for about 2 hours. I was amazed at how much build up was washed out of the heater. My pressure seems better and my water heats up quicker than it has in years.

### ⭐⭐⭐⭐⭐ Just what I needed
*by W***S on 22 September 2024*

Installed a tankless water heater and these worked perfectly. A must have when installing a tankless water heater and the price was the best I found. And as opposed to another reviewer that said it doesn't come with the free water pressure gauge.. mine did.. came with everything as in the posting. It was included separate from the box with the valves so maybe his just didn't get thrown in by mistake.

## Frequently Bought Together

- CMI Inc - 3/4 Inch Tankless Water Heater Isolation Service Valve with Pressure Relief Valve – Female to Female Connection – Flush Kit for Gas & Electric Models, PEX Core
- Rheem 18kW 240V Tankless Electric Water Heater, Gray
- HYDRO MASTER Tankless Water Heater Service Valve Kit with Pressure Relief Valve 3/4-Inch IPS Isolator Clean Brass

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-01*