---
product_id: 3164809
title: "Watts Tankless Water Heater Service Valve Kit"
brand: "watts"
price: "$U7200"
currency: UYU
in_stock: true
reviews_count: 13
url: https://www.desertcart.uy/products/3164809-watts-tankless-water-heater-service-valve-kit
store_origin: UY
region: Uruguay
---

# 3/4-inch female threaded union brass fittings Lead-free with <0.25% lead content Replaces 18 fittings & 16 connectors Watts Tankless Water Heater Service Valve Kit

**Brand:** watts
**Price:** $U7200
**Availability:** ✅ In Stock

## Summary

> 🔥 Upgrade your tankless water heater game with Watts — the valve kit pros trust! ⚙️

## Quick Answers

- **What is this?** Watts Tankless Water Heater Service Valve Kit by watts
- **How much does it cost?** $U7200 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/3164809-watts-tankless-water-heater-service-valve-kit)

## Best For

- watts enthusiasts

## Why This Product

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

## Key Features

- • **Durable Brass Construction:** Premium 3/4-inch female threaded union fittings ensure a leak-resistant, long-lasting connection.
- • **Certified Safety & Compliance:** NSF/ANSI 61 certified valves guarantee safe, clean water with lead-free materials for peace of mind.
- • **Easy Scale Removal & Servicing:** Purge/drain ports enable regular cleaning to prevent scale build-up, keeping your heater efficient and reliable.
- • **Integrated Pressure Relief Valve:** Built-in poppet-type pressure relief protects your system from excessive pressure, enhancing durability.
- • **Streamlined Installation & Maintenance:** Simplifies tankless water heater setup by replacing multiple fittings and connectors, saving you time and hassle.

## Overview

The Watts Tankless Water Heater Service Valve Kit is a professional-grade solution designed to replace up to 18 fittings and 16 connectors in typical tankless water heater installations. Featuring durable brass construction with 3/4-inch female threaded union fittings, it simplifies installation and maintenance. Certified NSF/ANSI 61 and lead-free, it includes optional pressure relief and check valves, plus purge ports for easy scale removal—ensuring safety, reliability, and longevity for your tankless system.

## Description

Product Description This Watts Series THW Tankless water heater valves are designed to simplify the installation and maintenance of tankless water heaters They replace up to 18 fittings and 16 connectors used in typical tankless water heater installations Available in two valve sets for both hot and cold water with 3/4-inch female threaded union brass fittings From the Manufacturer This Watts Series THW Tankless water heater valves are designed to simplify the installation and maintenance of tankless water heaters They replace up to 18 fittings and 16 connectors used in typical tankless water heater installations Available in two valve sets for both hot and cold water with 3/4-inch female threaded union brass fittings

Review: Folks, you need to use thread tape. - Installed these today with no issues at all. They are well made and easy to work with. I think it's important to mention that you need to use thread tape (or equivalent) on the pieces you connect to the valves. They are tapered fittings and therefore do not use o-rings to seal, they seal against the male threads, and those male threads need to have thread tape (teflon tape, pipe tape, etc) on them or you will not have a good seal. I think most of the negative reviews are from people who's biggest issue is user error. Mine came with the pressure relief valve. Have read some reviews where people say they didn't get that part. Mine was shipped by Handyman Direct. Thank you Handyman Direct!
Review: All works fine now. Thanks - Very well made valve. It arrived within two days. i got the valves installed and turned the water on. I had a leak. took the leaky valve apart on found that the O-Ring was missing. I guess I should have looked at it first. I went to big box store on Sunday and was able to find another O-Ring.All works fine now. Thanks Ernie

## Features

- TANKLESS WATER HEATER VALVE KIT: Watts LFTWH-FT-HCN service valve kit for tankless water heater valves simplify the installation, maintenance and operation of tankless water heaters.
- SERVICE VALVE KIT FOR TANKLESS WATER HEATER: The tankless water heater service valve kit replaces up to 18 fittings and 16 connections used in typical tankless water heater installations, color-coded tee handle. Optional pressure relief and check valve.
- MULTIPLE CONNECTION VALVE KIT: They are available in two valve sets or as a single valve with female threaded, union or quick-connect end options. The service valve kits are available with or without a relief valve. Facilitate service and maintenance with cold water inlet and hot water outlet valves certified to NSF/ANSI 61.
- LEAD FREE VALVE KIT: The wetted surface of our Lead Free products contacted by consumable water contain less than one quarter of one percent (0.25 percent) of lead by weight.
- WATER SERVICE VALVE KIT: Purge/drain ports allow regular cleaning to remove scale build-up. The kit includes LF4L - Lead free poppet type pressure relief valves for protection against excessive pressure and LFTWH - Lead Free Tankless Water Heater Valves.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0046ECKS6 |
| Batteries Included? | No |
| Batteries Required? | No |
| Best Sellers Rank | #1,818,641 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #4,157 in Water Heater Replacement Parts |
| Brand | Watts |
| Color | Brass |
| Customer Reviews | 4.3 4.3 out of 5 stars (674) |
| Date First Available | October 22, 2010 |
| Exterior Finish | Brass |
| Finish | Bronze/Copper Metallic |
| Global Trade Identification Number | 00098268472493 |
| Included Components | Valve Kit for Tankless Water Heater |
| Inlet Connection Size | 0.75 Inches |
| Inlet Connection Type | threaded |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 5 pounds |
| Item dimensions L x W x H | 8 x 10 x 3 inches |
| Item model number | LFTWH-Foot-HCN |
| Manufacturer | Watts |
| Material | Copper |
| Measurement System | inch |
| Number of Handles | 1 |
| Number of Ports | 4 |
| Outlet Connection Size | 0.75 Inches |
| Outlet Connection Type | Union Joint |
| Part Number | LFTWH-Foot-HCN |
| Product Dimensions | 8 x 10 x 3 inches |
| Size | 4.3 |
| Specification Met | NSF, ansi |
| UPC | 098268472493 |
| Warranty Description | 1-Year Manufacturer Limited |

## Product Details

- **Brand:** Watts
- **Exterior Finish:** Brass
- **Inlet Connection Size:** 0.75 Inches
- **Inlet Connection Type:** threaded
- **Item dimensions L x W x H:** 8 x 10 x 3 inches
- **Material:** Copper
- **Number of Ports:** 4
- **Outlet Connection Size:** 0.75 Inches
- **Outlet Connection Type:** Union Joint
- **Specification Met:** NSF, ansi

## Images

![Watts Tankless Water Heater Service Valve Kit - Image 1](https://m.media-amazon.com/images/I/31K0Thli7rL.jpg)
![Watts Tankless Water Heater Service Valve Kit - Image 2](https://m.media-amazon.com/images/I/415XjhpAWqL.jpg)
![Watts Tankless Water Heater Service Valve Kit - Image 3](https://m.media-amazon.com/images/I/41D5CGBmTIL.jpg)
![Watts Tankless Water Heater Service Valve Kit - Image 4](https://m.media-amazon.com/images/I/41FI1bLBLuL.jpg)
![Watts Tankless Water Heater Service Valve Kit - Image 5](https://m.media-amazon.com/images/I/41uIBVUajjL.jpg)

## Questions & Answers

**Q: Inline filter for a Tempra tankless water heater**
A: Not sure you need a inline filter, you can get a kit to flush your tankless once a year , with vingar or they sell cleaner made for them. It's two shut off valves on the in and out of unit , also nice to have if you need to have work done on unit .

**Q: Is the drain valve threaded outlet 3/4 or 1/2 inch?**
A: if it says it is a 3/4" Service Valve Kit - all fittings are 3/4"...

**Q: What's the benefit of these values over installing typical $10 lead-free brass ball valves?  4x ball valves + 2x tees = ~$50.**
A: Satisfied the building code, what the instant water heater installation manual called for, ease of installation,  ability to flush out water heater when needed.

**Q: Is this product available in 1 inch without pressure relife?**
A: no idea. ask the manufacturer

## Customer Reviews

### ⭐⭐⭐⭐⭐ Folks, you need to use thread tape.
*by J***G on February 19, 2016*

Installed these today with no issues at all. They are well made and easy to work with. I think it's important to mention that you need to use thread tape (or equivalent) on the pieces you connect to the valves. They are tapered fittings and therefore do not use o-rings to seal, they seal against the male threads, and those male threads need to have thread tape (teflon tape, pipe tape, etc) on them or you will not have a good seal. I think most of the negative reviews are from people who's biggest issue is user error. Mine came with the pressure relief valve. Have read some reviews where people say they didn't get that part. Mine was shipped by Handyman Direct. Thank you Handyman Direct!

### ⭐⭐⭐⭐⭐ All works fine now. Thanks
*by E***. on October 7, 2015*

Very well made valve. It arrived within two days. i got the valves installed and turned the water on. I had a leak. took the leaky valve apart on found that the O-Ring was missing. I guess I should have looked at it first. I went to big box store on Sunday and was able to find another O-Ring.All works fine now. Thanks Ernie

### ⭐⭐⭐⭐ I got these as recommended to be able to flush out my tankless hot ...
*by B***N on March 31, 2017*

I got these as recommended to be able to flush out my tankless hot water heater. They were very easy to self install. There is a very small slow drip in the top joint that may have been overtightened. I ended up using the flush connectors for my clothes washing machine, instead of a separate set of connections. I am happy for the adaptation for the washing machine. The cost of these valves was easily offset by the savings of the extra outlet parts.

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-20*