--- 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: "1080986β‚«" currency: VND in_stock: true reviews_count: 8 category: "Diy Part Center" url: https://www.desertcart.vn/products/526868880-hot-tub-1-inch-on-off-neck-and-waterfall-valve store_origin: VN region: Vietnam --- # Enhanced water flow control DIY-friendly installation 1-inch precision valve size 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:** 1080986β‚« **Availability:** βœ… In Stock ## Summary > πŸ’¦ Elevate your spa game with flawless flow control β€” don’t let a faulty valve ruin your unwind! ## 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?** 1080986β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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 - β€’ **No Pro Needed:** Simple DIY installation means you’re back to spa bliss without waiting or extra costs. - β€’ **Control Your Oasis:** Easily manage neck and waterfall water flow to customize your ultimate relaxation vibe. - β€’ **Seamless Spa Upgrade:** Effortlessly replace your spa valve with a perfect fit for Marquis Spas DIY350-6326. - β€’ **Leak-Proof Confidence:** Includes two durable O-rings and lubricant for a secure, drip-free seal every time. - β€’ **Durability Meets Design:** Crafted from premium materials built to withstand frequent spa use and water exposure. ## 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, two durable O-rings, and lubricant to ensure a leak-free, smooth water flow experience. Engineered for easy DIY installation and built from high-quality materials, it restores precise water control to your spa’s neck and waterfall features, enhancing your relaxation without professional help. ## 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: Fixed Aquaterra waterfall - This is the part that broke probably causing my pump and control board to fail. The rubber seal from this was missing and most likely stuck in the impeller causing overheating. If your waterfall won’t turn off I suggest replacing this part sooner than later. Review: Perfect fit for my Catalina Nantucket perfectly - Fit my 2020 Catalina Nantucket spa waterfall feature perfectly. ## 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 | #169,968 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #3,394 in Pool & Spa Replacement Parts | | Brand | Diy Part Center | | Color | white | | Customer Reviews | 4.4 4.4 out of 5 stars (50) | | 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/51qLZYgHrlL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fixed Aquaterra waterfall *by S***A on May 19, 2025* This is the part that broke probably causing my pump and control board to fail. The rubber seal from this was missing and most likely stuck in the impeller causing overheating. If your waterfall won’t turn off I suggest replacing this part sooner than later. ### ⭐⭐⭐⭐⭐ Perfect fit for my Catalina Nantucket perfectly *by J***I on November 11, 2025* Fit my 2020 Catalina Nantucket spa waterfall feature perfectly. ### ⭐⭐⭐⭐ 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 1Β½" 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 --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.vn/products/526868880-hot-tub-1-inch-on-off-neck-and-waterfall-valve](https://www.desertcart.vn/products/526868880-hot-tub-1-inch-on-off-neck-and-waterfall-valve) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-04-24*