---
product_id: 134654346
title: "Waterway Plunger & Cap Assy 605-4370, 1\" On/Off Valve"
brand: "waterway"
price: "€ 35.96"
currency: EUR
in_stock: true
reviews_count: 12
category: "Waterway"
url: https://www.desertcart.gr/products/134654346-waterway-plunger-and-cap-assy-605-4370-1-on-off
store_origin: GR
region: Greece
---

# 1" On/Off Valve precision Easy twist flange connection Durable plastic build Waterway Plunger & Cap Assy 605-4370, 1" On/Off Valve

**Brand:** waterway
**Price:** € 35.96
**Availability:** ✅ In Stock

## Summary

> 💧 Upgrade your spa flow with effortless precision!

## Quick Answers

- **What is this?** Waterway Plunger & Cap Assy 605-4370, 1" On/Off Valve by waterway
- **How much does it cost?** € 35.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/134654346-waterway-plunger-and-cap-assy-605-4370-1-on-off)

## 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 Brand:** Waterway’s proven design with 4.5-star rating ensures dependable performance
- • **Effortless Control:** Smooth 1" On/Off valve operation for precise water flow management
- • **Quick Installation:** User-friendly flange and FNPT connections make replacement a breeze
- • **Reliable Durability:** High-quality plastic construction resists wear and extends spa life
- • **Universal Compatibility:** Fits most spa and hot tub waterfall valves for seamless upgrades

## Overview

The Waterway Plunger & Cap Assembly 605-4370 is a 1" On/Off valve designed for easy replacement and reliable control of spa water flow. Featuring durable plastic construction and simple flange connections, it fits most spa waterfall valves, offering a quick fix for worn-out gaskets and ensuring long-lasting performance backed by Waterway’s trusted brand reputation.

## Description

Plunger & Cap Assembly, Waterway, 1 On/Off Valve

Review: Works! - Color is different than my OG one but this worked. The cap people order together does not fit though. I returned the cap. That is an AirPod case to show size. Used this on an old Hawkeye hot tub.
Review: Quick fix for busted gasket - The waterfall valve on my spa had a gasket that got crushed after several years use. The waterfall could not be shut off. Replacing it was problematic as the gasket had been glued on. Plus I had no luck finding a similarly sized one. A helpful tech at my local spa place found this listing for me on desertcart. The swap was easy. The handle just pulls off, and the ring holding the valve on is easy to unscrew. Then just put in the new one, tighten the ring and pop the handle back on.

## Features

- Plunger & Cap Assembly, Waterway, 1" On/Off Valve.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01NCUYRSU |
| Best Sellers Rank | #126,447 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #2,798 in Pool & Spa Replacement Parts |
| Brand | Waterway |
| Brand Name | Waterway |
| Customer Reviews | 4.5 out of 5 stars 107 Reviews |
| Exterior Finish | Stainless Steel |
| Inlet Connection Size | 1 inches |
| Inlet Connection Type | Flange |
| Item Dimensions | 6 x 4 x 6 inches |
| Item dimensions L x W x H | 6 x 4 x 6 inches |
| Manufacturer | Waterway Plastics |
| Manufacturer Part Number | 605-4370 |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | 712145129934 |
| Number of Items | 1 |
| Number of Pieces | 1 |
| Number of Ports | 1 |
| Outlet Connection Size | 1 inches |
| Outlet Connection Type | FNPT |
| UPC | 712145129934 |
| Unit Count | 1 Count |
| Valve Type | On/Off Valve |

## Product Details

- **Brand:** Waterway
- **Exterior Finish:** Stainless Steel
- **Inlet Connection Size:** 1 Inches
- **Inlet Connection Type:** Flange
- **Item dimensions L x W x H:** 6 x 4 x 6 inches
- **Material:** Plastic
- **Number of Ports:** 1
- **Outlet Connection Size:** 1 Inches
- **Outlet Connection Type:** FNPT
- **Unit Count:** 1.0 Count

## Images

![Waterway Plunger & Cap Assy 605-4370, 1" On/Off Valve - Image 1](https://m.media-amazon.com/images/I/61nylfwsSfL.jpg)
![Waterway Plunger & Cap Assy 605-4370, 1" On/Off Valve - Image 2](https://m.media-amazon.com/images/I/61aArS8dAwL.jpg)
![Waterway Plunger & Cap Assy 605-4370, 1" On/Off Valve - Image 3](https://m.media-amazon.com/images/I/61VFXLVooTL.jpg)
![Waterway Plunger & Cap Assy 605-4370, 1" On/Off Valve - Image 4](https://m.media-amazon.com/images/I/61mg04cJYKL.jpg)
![Waterway Plunger & Cap Assy 605-4370, 1" On/Off Valve - Image 5](https://m.media-amazon.com/images/I/71B4uTI2+PL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works!
*by L***A on July 26, 2025*

Color is different than my OG one but this worked. The cap people order together does not fit though. I returned the cap. That is an AirPod case to show size. Used this on an old Hawkeye hot tub.

### ⭐⭐⭐⭐⭐ Quick fix for busted gasket
*by T***M on October 15, 2025*

The waterfall valve on my spa had a gasket that got crushed after several years use. The waterfall could not be shut off. Replacing it was problematic as the gasket had been glued on. Plus I had no luck finding a similarly sized one. A helpful tech at my local spa place found this listing for me on Amazon. The swap was easy. The handle just pulls off, and the ring holding the valve on is easy to unscrew. Then just put in the new one, tighten the ring and pop the handle back on.

### ⭐⭐⭐⭐⭐ Worked great
*by J***H on October 18, 2024*

Perfect replacement for my spa waterfall diiverter

## Frequently Bought Together

- Waterway Plunger & Cap Assy 605-4370, 1" On/Off Valve
- Waterway 602-4351 Turn Knob On/Off Valve Black

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-09-30*