---
product_id: 12905916
title: "NATIONAL DIVERSIFIED SALES INC 1720C20 2\" SWING CK VALVE UNION CLR"
brand: "advantage"
price: "€ 178.77"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.pt/products/12905916-national-diversified-sales-inc-1720c20-2-swing-ck-valve-union
store_origin: PT
region: Portugal
---

# Clear PVC Body 2" Swing Action True Union Design NATIONAL DIVERSIFIED SALES INC 1720C20 2" SWING CK VALVE UNION CLR

**Brand:** advantage
**Price:** € 178.77
**Availability:** ✅ In Stock

## Summary

> 💧 Elevate Your Plumbing Game with Precision Control!

## Quick Answers

- **What is this?** NATIONAL DIVERSIFIED SALES INC 1720C20 2" SWING CK VALVE UNION CLR by advantage
- **How much does it cost?** € 178.77 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/12905916-national-diversified-sales-inc-1720c20-2-swing-ck-valve-union)

## Best For

- advantage enthusiasts

## Why This Product

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

## Key Features

- • **Professional Grade:** Engineered for reliability, making it the go-to choice for industry professionals.
- • **True Union Advantage:** Easily disassemble for maintenance without disrupting your plumbing system.
- • **Durable & Transparent:** Clear PVC construction allows for easy monitoring of flow and condition.
- • **Versatile Connections:** Designed for 2" slip connections, ensuring compatibility with various plumbing setups.
- • **Effortless Flow Control:** Experience seamless fluid management with our precision swing check valve.

## Overview

The NATIONAL DIVERSIFIED SALES INC 1720C20 2" SWING CK VALVE UNION CLR is a high-performance check valve designed for efficient flow control in plumbing systems. Featuring a durable clear PVC body and true union design, it allows for easy maintenance and monitoring, making it an essential tool for professionals seeking reliability and versatility.

## Description

NATIONAL DIVERSIFIED SALES INC 1720C20 2" SWING CK VALVE UNION CLR

## Features

- Check Valve, Flo Control, Swing, 2" Slip, True Union.
- Clear pvc body.
- First Plumbing Connection: 2" - Slip (s) w/ Union;
- Second Plumbing Connection: 2" - Slip (s) w/ Union.

## Images

![NATIONAL DIVERSIFIED SALES INC 1720C20 2" SWING CK VALVE UNION CLR - Image 1](https://m.media-amazon.com/images/I/81IMwoi7+cL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect replacement for existing pool check valve
  

*by D***S on Reviewed in the United States on June 24, 2023*

Size and threading were exact match for my existing pool swing-check valve. Only needed to unscrew the rings for the existing value, drop this one in, and then re-tighten the existing rings. Replacement could not have been simpler.The new valve included the PVC slip connectors and threaded rings to allow the valve to be cut in, but I did not use them as valve fit the old connections perfectly.

### ⭐⭐⭐ 3.0 out of 5 stars







  
  
    Not spring type, it is flapper
  

*by F***E on Reviewed in the United States on February 12, 2023*

For applications where the flapper is facing down, like mine, it did not work, as gravity was taking over the flapper position even with some pressure on the out flow. For pools, use a spring loaded check valve, 0.5lb works for me.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Works as advertised
  

*by D***T on Reviewed in the United States on February 14, 2023*

Pretty cool to have a see through valve. Although the novelty wears off.Easy enough to cement during assembly.

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**Shop now:** [https://www.desertcart.pt/products/12905916-national-diversified-sales-inc-1720c20-2-swing-ck-valve-union](https://www.desertcart.pt/products/12905916-national-diversified-sales-inc-1720c20-2-swing-ck-valve-union)

---

*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-03-14*