---
product_id: 618149409
title: "Hot Tub 1 Inch On/Off Neck and Waterfall Valve Insert Compatible with Most Marquis Spa 350-6326, Pack of 2"
brand: "hot tub classic parts"
price: "€ 66.59"
currency: EUR
in_stock: true
reviews_count: 6
category: "Hot Tub Classic Parts"
url: https://www.desertcart.nl/products/618149409-hot-tub-1-inch-on-off-neck-and-waterfall-valve
store_origin: NL
region: Netherlands
---

# On/off neck & waterfall control Durable PVC construction 1-inch precision fit Hot Tub 1 Inch On/Off Neck and Waterfall Valve Insert Compatible with Most Marquis Spa 350-6326, Pack of 2

**Brand:** hot tub classic parts
**Price:** € 66.59
**Availability:** ✅ In Stock

## Summary

> 💦 Control your spa’s flow like a pro—because your relaxation deserves precision.

## Quick Answers

- **What is this?** Hot Tub 1 Inch On/Off Neck and Waterfall Valve Insert Compatible with Most Marquis Spa 350-6326, Pack of 2 by hot tub classic parts
- **How much does it cost?** € 66.59 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/618149409-hot-tub-1-inch-on-off-neck-and-waterfall-valve)

## Best For

- hot tub classic parts enthusiasts

## Why This Product

- Trusted hot tub classic parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from robust PVC for long-lasting durability and reliable spa performance.
- • **Value-Packed Twin Set:** Two high-quality valve inserts in one pack—double the control, half the price of OEM parts.
- • **Universal Compatibility:** Designed to fit most Marquis Spa models including Hydropool Serenity and MasterSpa Twilight 8.2.
- • **Upgrade Your Relaxation:** Restore your spa’s water features to flawless operation and elevate your at-home oasis.
- • **Seamless Spa Flow Control:** Effortlessly toggle your waterfall and neck jets with precision on/off functionality.

## Overview

This pack of two 1-inch on/off neck and waterfall valve inserts is engineered for most Marquis Spa models, offering durable PVC construction and precise water flow control. Perfect for restoring or upgrading your spa’s waterfall and neck jets, these inserts provide an affordable, reliable alternative to costly OEM parts.

## Description

Marquis Spa 1 Inch on/off neck and waterfall valve insert. MRQ350-6326/350-6326 You will receive 1 item High quality made to last! !

Review: Fits Hydropool Serenity Jacuzzi - Fits my Hydropool Serenity Jacuzzi. Original part over double the price.Supplied in a two pack.
Review: Took almost 4 days to get to my door, but that's not the fault of the product. I've only owned it for 10 minutes, but my water feature (waterfalls) in my MasterSpa Twilight 8.2 now can shut off and on correctly! This is the proper diverter valve insert for most MasterSpa features. This will not fit the actual jet diverter valves.

## Features

- High quality that's made to last! !

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B2K5NWPC |
| Best Sellers Rank | 118,634 in Garden ( See Top 100 in Garden ) 288 in Pool & Hot Tub Filter Accessories & Parts |
| Customer Reviews | 4.4 4.4 out of 5 stars (70) |
| Date First Available | 12 Mar. 2024 |
| Item display height | 1 inches |
| Item display length | 1 inches |
| Item display weight | 45 g |
| Item display width | 1 inches |
| Item model number | 1 |
| Material type | Polyvinyl Chloride (PVC) |
| Part number | 1 |
| Product Dimensions | 164.85 x 164.85 x 2.54 cm; 41 g |

## Product Details

- **Brand:** Hot Tub Classic parts
- **Colour:** White
- **Item weight:** 0.04 Kilograms
- **Material:** Polyvinyl Chloride (PVC)
- **Product dimensions:** 164.8L x 164.8W x 2.5H centimetres

## Images

![Hot Tub 1 Inch On/Off Neck and Waterfall Valve Insert Compatible with Most Marquis Spa 350-6326, Pack of 2 - Image 1](https://m.media-amazon.com/images/I/418XkMV3k8L.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fits Hydropool Serenity Jacuzzi
*by A***. on 24 May 2025*

Fits my Hydropool Serenity Jacuzzi. Original part over double the price.Supplied in a two pack.

### ⭐⭐⭐⭐⭐ Review
*by M***H on 2 October 2025*

Took almost 4 days to get to my door, but that's not the fault of the product. I've only owned it for 10 minutes, but my water feature (waterfalls) in my MasterSpa Twilight 8.2 now can shut off and on correctly! This is the proper diverter valve insert for most MasterSpa features. This will not fit the actual jet diverter valves.

### ⭐⭐⭐⭐⭐ Review
*by A***Y on 26 November 2025*

Works for my hot tub, it was broken. Came with 2 so I have a spare, way cheaper than on brand website.

## Frequently Bought Together

- Hot Tub Classic parts Hot Tub 1 Inch On/Off Neck and Waterfall Valve Insert Compatible with Most Marquis Spa 350-6326, Pack of 2
- Waterway Plastics 711-4050 Ribbed O-ring/Gasket used on 1½" Spa Heaters and Pump Unions
- Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-19*