---
product_id: 193262248
title: "Waterway Plastics 718-7021-CPVCB Lock Ring Check Valve Nut same as 718-7021-CPVC"
brand: "waterway"
price: "₱2595"
currency: PHP
in_stock: true
category: "Waterway"
url: https://www.desertcart.ph/products/193262248-waterway-plastics-718-7021-cpvcb-lock-ring-check-valve-nut
store_origin: PH
region: Philippines
---

# Factory-sealed packaging for guaranteed quality Precision fit for select Waterway valves Durable CPVC resists harsh pool chemicals Waterway Plastics 718-7021-CPVCB Lock Ring Check Valve Nut same as 718-7021-CPVC

**Brand:** waterway
**Price:** ₱2595
**Availability:** ✅ In Stock

## Summary

> 🔩 Lock in flawless pool flow with Waterway precision!

## Quick Answers

- **What is this?** Waterway Plastics 718-7021-CPVCB Lock Ring Check Valve Nut same as 718-7021-CPVC by waterway
- **How much does it cost?** ₱2595 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ph](https://www.desertcart.ph/products/193262248-waterway-plastics-718-7021-cpvcb-lock-ring-check-valve-nut)

## Best For

- waterway enthusiasts

## Why This Product

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

## Key Features

- • **Trusted Performance:** Highly rated by professionals and pool enthusiasts alike with a 4.8-star average from 43 reviews.
- • **Tailored Compatibility:** Engineered to fit select Waterway check valves perfectly—check your manual to avoid guesswork.
- • **Factory-Sealed Assurance:** Comes in manufacturer-sealed packaging, guaranteeing pristine condition and authenticity.
- • **Secure Water Flow Control:** Lock ring design ensures valve components stay tightly sealed, maintaining optimal water management.
- • **Chemical-Resistant Durability:** Crafted from premium CPVC to withstand aggressive pool and spa chemicals without degradation.

## Overview

The Waterway Plastics 718-7021-CPVCB Lock Ring Check Valve Nut is a durable, CPVC-made replacement part designed specifically for select Waterway check valves. It ensures secure assembly and optimal water flow in pool and spa systems, comes factory-sealed for quality assurance, and enjoys strong user ratings for reliability.

## Description

The Waterway CPVC Check Valve Lock Ring 718-7021-CPVC is a replacement lock ring designed for Waterway serviceable check valves, which helps to secure the valve components and maintain proper water flow in pool and spa systems. It is made of durable CPVC material to ensure resistance to pool chemicals and harsh conditions. It is commonly used in various Waterway check valves, ensuring effective water management in pool setups.

## Features

- Fits select Waterway Check Valves, check your manual to ensure proper fit.
- This part# 718-7021-CPVCB is the same as 718-7021-CPVC except this part is in mfg. sealed packaging.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07NBV6QFD |
| Best Sellers Rank | #462,825 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #13,437 in Pool & Spa Replacement Parts |
| Customer Reviews | 4.8 4.8 out of 5 stars (43) |
| Date First Available | February 1, 2019 |
| Item Weight | 3.56 ounces |
| Manufacturer | Waterway Plastics |
| Package Dimensions | 6.26 x 6.02 x 1.22 inches |

## Images

![Waterway Plastics 718-7021-CPVCB Lock Ring Check Valve Nut same as 718-7021-CPVC - Image 1](https://m.media-amazon.com/images/I/41HSYYBI3pL.jpg)

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**Shop now:** [https://www.desertcart.ph/products/193262248-waterway-plastics-718-7021-cpvcb-lock-ring-check-valve-nut](https://www.desertcart.ph/products/193262248-waterway-plastics-718-7021-cpvcb-lock-ring-check-valve-nut)

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*Product available on Desertcart Philippines*
*Store origin: PH*
*Last updated: 2026-08-28*