---
product_id: 201203463
title: "AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit"
brand: "zurn"
price: "$128.92"
currency: USD
in_stock: true
reviews_count: 5
category: "Zurn"
url: https://www.desertcart.us/products/201203463-aquaflush-closet-rebuild-kit-p6000-ecr-ws1-rk-1-6
store_origin: US
region: United States of America
---

# Universal NPT 1.6-inch Connections 1.6 GPF WaterSense Certified Complete Diaphragm Rebuild Kit AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit

**Brand:** zurn
**Price:** $128.92
**Availability:** ✅ In Stock

## Summary

> 🚿 Upgrade your flush game with precision and eco-conscious power!

## Quick Answers

- **What is this?** AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit by zurn
- **How much does it cost?** $128.92 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/201203463-aquaflush-closet-rebuild-kit-p6000-ecr-ws1-rk-1-6)

## Best For

- zurn enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Durability:** Crafted with high-quality plastic components ensuring corrosion resistance and maintenance ease.
- • **Pro-Grade Engineering:** National Pipe Tapered (NPT) 1.6-inch inlet and outlet connections for secure, leak-free fit.
- • **All-in-One Reliability:** Comprehensive diaphragm rebuild kit designed for seamless installation and long-lasting valve performance.
- • **Eco-Friendly Precision:** 1.6 gallons per flush meets WaterSense standards for sustainable water use without sacrificing performance.
- • **Universal Compatibility:** Fits Zurn AquaVantage, AquaFlush, and Sloan Royal/Regal valve bodies for versatile plumbing solutions.

## Overview

The Zurn AquaFlush Closet Rebuild Kit (P6000-ECR-WS1-RK) is a WaterSense-certified 1.6 gallons per flush diaphragm rebuild kit engineered for reliable, efficient toilet valve restoration. Compatible with multiple Zurn and Sloan valve bodies, it features durable plastic construction and standard 1.6-inch NPT connections, ensuring a professional-grade, easy-to-install solution that enhances water efficiency and longevity.

## Description

Diaphragm kit 1.6 GPF complete rebuild kit P6000 aqua flush.

Review: Self cleaning orifice, straight vacuum braker reliable. - Good kit.
Review: Works great. - It is what I needed and everything fit and worked great.

## Features

- Flush Valve Parts
- Aquaflush 1.6gpf/6.0lpf Closet Rebuild Kit-boxed
- For use in Zurn AquaVantage /Aquaflush & Sloan Royal / Regal valve bodies
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000M2UDGC |
| Brand | Zurn |
| Customer Reviews | 4.7 out of 5 stars 314 Reviews |
| Exterior Finish | Plastic |
| Exterior finish | Plastic |
| Global Trade Identification Number | 00670240553880 |
| Inlet Connection Size | 1.6 Inches |
| Inlet Connection Type | National Pipe Tapered |
| Inlet connection size | 1.6 Inches |
| Inlet connection type | National Pipe Tapered |
| Item Dimensions | 7.6 x 7.6 x 7.6 centimetres |
| Item Weight | 36 g |
| Item dimensions L x W x H | 7.6 x 7.6 x 7.6 centimetres |
| Manufacturer | Zurn |
| Model Number | P6000-ECR-WS1-RK |
| Outlet Connection Size | 1.6 Inches |
| Outlet Connection Type | NPT |
| Outlet connection type | NPT |
| Part Number | P6000-ECR-WS1-RK |
| Size | 1.6 gpf |
| Specification Met | WaterSense |
| Thread Type | NPT |
| UPC | 251171306198 251171306914 670240553880 |
| Unit Count | 1.0 count |
| Valve Type | flush valve |

## Product Details

- **Brand:** Zurn
- **Exterior finish:** Plastic
- **Global Trade Identification Number:** 00670240553880
- **Inlet connection size:** 1.6 Inches
- **Inlet connection type:** National Pipe Tapered
- **Item dimensions L x W x H:** 7.6 x 7.6 x 7.6 centimetres
- **Outlet connection size:** 1.6 Inches
- **Outlet connection type:** NPT
- **Specification met:** WaterSense
- **Unit count:** 1.0 count

## Images

![AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit - Image 1](https://m.media-amazon.com/images/I/61Hx09lA7HL.jpg)
![AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit - Image 2](https://m.media-amazon.com/images/I/61vy7Cr4o8L.jpg)
![AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit - Image 3](https://m.media-amazon.com/images/I/41aABrKTTlL.jpg)
![AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit - Image 4](https://m.media-amazon.com/images/I/612zYaU02tL.jpg)

## Questions & Answers

**Q: how do you determine if 1.6gpf or 3.5gpf or other?**
A: If you look on the top cap it should say.   WS1 is1.6gal, WS is 3.5gal, and FF is Full Flush- 4.5 gal

**Q: what's the different between zurn p6000-eca and zurn p6000-ecr?**
A: Zurn P6000-ECR-WS1-RK is the diaphragm kit for our Aquaflush line : 
https://www.zurn.com/products/repair-parts/finish-plumbing/flush-valves/manual/parts-by-category/diaphragm-kits/p6000-eca-ws1

The P6000-ECR-WS1-RK is the diaphragm kit for Zurn’s AquaVantage valves: 
https://www.zurn.com/products/repair-parts/finish-plumbing/flush-valves/manual/parts-by-category/diaphragm-kits/p6000-ecr-ws1

## Customer Reviews

### ⭐⭐⭐⭐⭐ Self cleaning orifice, straight vacuum braker reliable.
*by G***L on 7 March 2025*

Good kit.

### ⭐⭐⭐⭐⭐ Works great.
*by A***R on 18 June 2026*

It is what I needed and everything fit and worked great.

### ⭐⭐⭐⭐⭐ OEM quality
*by T***S on 2 January 2020*

Not sure if these are rally Zurn products or not but they fit and work perfect. Great price.

## Frequently Bought Together

- Zurn AquaFlush Closet Rebuild Kit, P6000-ECR-WS1-RK, 1.6 gpf, Diaphragm Rebuild Kit
- Bemis 000 M1955C-000 1955CT Commercial Heavy Duty Open Front Toilet Seat Will Never Loosen & Reduce Call-Backs, Plastic, White, Elongated

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-29*