---
product_id: 526868880
title: "Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326"
brand: "diy part center"
price: "R$327"
currency: BRL
in_stock: true
reviews_count: 8
category: "Diy Part Center"
url: https://www.desertcart.com.br/products/526868880-hot-tub-1-inch-on-off-neck-and-waterfall-valve
store_origin: BR
region: Brazil
---

# Enhanced water flow control DIY-friendly quick install 1-inch valve precision fit Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326

**Brand:** diy part center
**Price:** R$327
**Availability:** ✅ In Stock

## Summary

> 💦 Upgrade your spa game—because your relaxation deserves precision control!

## Quick Answers

- **What is this?** Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326 by diy part center
- **How much does it cost?** R$327 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/526868880-hot-tub-1-inch-on-off-neck-and-waterfall-valve)

## Best For

- diy part center enthusiasts

## Why This Product

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

## Key Features

- • **Premium Durability:** Crafted from high-quality materials designed to withstand frequent spa use and moisture.
- • **Leak-Proof O-Ring Duo:** Includes two durable O-rings ensuring a secure, drip-free spa experience.
- • **Effortless DIY Installation:** No professional tools needed—upgrade your spa in minutes and save on service costs.
- • **Ultimate Water Flow Control:** Easily toggle your spa’s neck and waterfall valve for the perfect relaxing ambiance.
- • **Precision 1-Inch Valve Insert:** Seamlessly compatible with Marquis Spas DIY350-6326 for a perfect fit every time.

## Overview

This Hot Tub 1-Inch ON/OFF Neck and Waterfall Valve Insert (DIY350-6326) is a premium replacement part designed specifically for Marquis Spas. It includes a 3.5-inch valve insert and two durable O-rings, crafted from high-quality materials to ensure leak-free, long-lasting performance. With simple DIY installation and enhanced water flow control, it’s the perfect upgrade to restore and elevate your spa’s waterfall feature.

## Description

Hot Tub Compatible with Marquis Spa 1 Inch On/Off Neck and Waterfall Valve Insert. 350-6326 and 2 identical O-rings;Upgrade your Marquis Spa with the DIY350-6326 Waterfall Valve Insert, designed for easy replacement and enhanced spa functionality. This high-quality valve inserts, and O-ring set ensures smooth water flow control, adding a soothing touch to your hot tub experience.

Review: Perfect fit for my Catalina Nantucket perfectly - Fit my 2020 Catalina Nantucket spa waterfall feature perfectly.
Review: Fixed our tub - Our hot tub was leaking, because the waterfall feature knob couldn’t be shut off and was running continuously. We did a little googling, and discovered that a small part inside the knob had worn away or disintegrated, so the integrity of the knob just wasn’t good anymore. A few bucks on this replacement part, and we quickly fixed our problem! The waterfall turns off no problem, and actually switching out this part was a cinch. Definitely a great value!

## Features

- You will receive one valve, which includes two identical O-rings and a sufficient amount of lubricant for this item.
- Perfect Compatibility: Designed to replace the Spa 1-Inch On/Off Neck and Waterfall Valve Insert (DIY350-6326).
- Complete Replacement Kit: Includes 1 valve insert (3.5 inches tall) and 2 durable O-rings (805-0113) for a secure, leak-free fit.
- Premium Materials: Crafted from durable, high-quality materials to withstand frequent use in spa environments.
- Simple DIY Installation: Quickly install this replacement valve with no professional tools required.
- Enhanced Water Flow Control: Effortlessly manage water flow to maintain a relaxing spa ambiance.
- Check Compatibility: Compare your original part and provided images to ensure the correct fit for your spa.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BG4DB8QW |
| Assembly Required | No |
| Best Sellers Rank | #67,459 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #717 in Pool & Spa Replacement Parts |
| Brand | Diy Part Center |
| Color | white |
| Customer Reviews | 4.4 4.4 out of 5 stars (49) |
| Global Trade Identification Number | 00810120420141 |
| Item Weight | 1.44 ounces |
| Item model number | DIY350-6326 |
| Manufacturer | DIY Part Center |
| Material | Plastic |
| Model Name | Hot Tub 1-Inch ON/OFF Neck and Waterfall Valve Insert with O-Rings DIY350-6326 |
| Product Dimensions | 1.32"L x 0.75"W x 3.5"H |
| Shape | Round |

## Product Details

- **Brand:** Diy Part Center
- **Color:** white
- **Material:** Plastic
- **Product Dimensions:** 1.32"L x 0.75"W x 3.5"H
- **Shape:** Round

## Images

![Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326 - Image 1](https://m.media-amazon.com/images/I/11ZwpIZgvJL.jpg)
![Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326 - Image 2](https://m.media-amazon.com/images/I/21lTVsZO8HL.jpg)
![Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326 - Image 3](https://m.media-amazon.com/images/I/21pFwI0-2lL.jpg)
![Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326 - Image 4](https://m.media-amazon.com/images/I/31+i60IHCXL.jpg)
![Hot Tub 1-Inch ON/Off Neck and Waterfall Valve Insert with O-Rings Compatible with Marquis Spas DIY350-6326 - Image 5](https://m.media-amazon.com/images/I/31254nuIC4L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect fit for my Catalina Nantucket perfectly
*by J***I on November 11, 2025*

Fit my 2020 Catalina Nantucket spa waterfall feature perfectly.

### ⭐⭐⭐⭐⭐ Fixed our tub
*by J***E on November 16, 2024*

Our hot tub was leaking, because the waterfall feature knob couldn’t be shut off and was running continuously. We did a little googling, and discovered that a small part inside the knob had worn away or disintegrated, so the integrity of the knob just wasn’t good anymore. A few bucks on this replacement part, and we quickly fixed our problem! The waterfall turns off no problem, and actually switching out this part was a cinch. Definitely a great value!

### ⭐⭐⭐⭐ Perfect fit for LifeSmart LS100
*by P***R on January 2, 2026*

It works fine but does not turn as easily as the original, and I did lube it with the lube provided.

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.com.br/products/526868880-hot-tub-1-inch-on-off-neck-and-waterfall-valve](https://www.desertcart.com.br/products/526868880-hot-tub-1-inch-on-off-neck-and-waterfall-valve)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-31*