--- product_id: 539843250 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: "305.81 DT" currency: TND in_stock: true reviews_count: 5 category: "Diy Part Center" url: https://www.desertcart.tn/products/539843250-hot-tub-1-inch-on-off-neck-and-waterfall-valve store_origin: TN region: Tunisia --- # 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:** 305.81 DT **Availability:** ✅ In Stock ## Summary > 💦 Take control of your spa’s vibe—because your relaxation deserves precision! ## 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?** 305.81 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/539843250-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 - • **Built to Last:** Crafted from premium materials designed to endure spa conditions and frequent use - • **DIY Spa Savior:** No professional tools needed—replace and restore your spa’s soothing flow in minutes - • **Effortless Control:** On/Off valve insert lets you master your spa’s waterfall and neck jets with ease - • **Seamless Spa Upgrade:** Perfectly compatible with Marquis Spas DIY350-6326 for a flawless fit - • **Leak-Proof Confidence:** Includes two durable O-rings and lubricant for a secure, drip-free seal ## 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 control. Engineered for easy DIY installation without tools, it enhances your spa experience by restoring precise waterfall and neck jet operation with long-lasting materials built to withstand frequent spa use. ## 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 hot tub - I found this doing a search for a replacement fountain control valve. It was easy to use and it even came with a small tube of silicon grease to lubricate the cartridge. VEry good price vs the OEM units 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. ## 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 | 382,777 in Garden ( See Top 100 in Garden ) 2,406 in Pool & Hot Tub Filter Accessories & Parts | | Brand | Diy Part Center | | Brand Name | Diy Part Center | | Colour | white | | Customer Reviews | 4.4 out of 5 stars 51 Reviews | | Global Trade Identification Number | 00810120420141 | | Is Assembly Required? | No | | Item Dimensions L x W x H | 25L x 25W x 76H millimetres | | Item Shape | Round | | Item Type Name | Waterfall Valve Insert | | Manufacturer | DIY Part Center | | Manufacturer Part Number | 350-6326 | | Material | Plastic | | Material Type | Plastic | | Model Name | Hot Tub 1-Inch ON/OFF Neck and Waterfall Valve Insert with O-Rings DIY350-6326 | | Model Number | DIY350-6326 | | Number of Items | 1 | | Product dimensions | 25L x 25W x 76H millimetres | | Shape | Round | | Unit Count | 1.0 count | ## Product Details - **Brand:** Diy Part Center - **Colour:** white - **Product dimensions:** 25L x 25W x 76H millimetres - **Material:** Plastic - **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) ![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/61lJknqmNoL.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/41VP4pSMTEL.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/61ltO4M0-bL.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/51VB5vkxFqL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Perfect fit for my Catalina hot tub *by B***B on 3 March 2026* I found this doing a search for a replacement fountain control valve. It was easy to use and it even came with a small tube of silicon grease to lubricate the cartridge. VEry good price vs the OEM units ### ⭐⭐⭐⭐⭐ Fixed Aquaterra waterfall *by S***A on 19 May 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. ### ⭐⭐⭐⭐⭐ Works *by T***S on 23 January 2025* Good replacement part. Works good ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/539843250-hot-tub-1-inch-on-off-neck-and-waterfall-valve](https://www.desertcart.tn/products/539843250-hot-tub-1-inch-on-off-neck-and-waterfall-valve) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-17*