--- product_id: 719551 title: "HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate" brand: "swimline" price: "£16.24" currency: GBP in_stock: true reviews_count: 13 category: "Swimline" url: https://www.desertcart.co.uk/products/719551-hydrotools-by-swimline-8720-extra-large-capacity-pool-and-spa store_origin: GB region: United Kingdom --- # 3 lb tablet capacity UV-resistant durable plastic Adjustable flow control ring HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate **Brand:** swimline **Price:** £16.24 **Availability:** ✅ In Stock ## Summary > 💧 Keep your pool pristine with precision and power! ## Quick Answers - **What is this?** HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate by swimline - **How much does it cost?** £16.24 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/719551-hydrotools-by-swimline-8720-extra-large-capacity-pool-and-spa) ## Best For - swimline enthusiasts ## Why This Product - Trusted swimline brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** UV-resistant plastic ensures durability under harsh sun exposure - • **Effortless Setup:** Simple assembly and refill process saves you time and hassle - • **Massive 3 lb Capacity:** Holds more chlorine or bromine tablets for longer maintenance cycles - • **Precision Flow Control:** Adjustable regulator ring lets you customize chemical dispersion with ease - • **Universal Compatibility:** Supports 1” to 3” chlorine and bromine tablets for versatile pool care ## Overview The SwimlineHYDROTOOLS 8720 is an extra-large capacity chemical dispenser designed for pools and spas. It supports 1-3 inch chlorine and bromine tablets, holds up to 3 pounds of chemicals, and features an adjustable control ring for customizable flow rates. Constructed from UV-resistant plastic, it offers durability and easy assembly, making pool maintenance efficient and reliable. ## Description Product Description With this Large Chlorine Dispenser, you can keep your pool ready for swimming at all times. It floats around to carry and evenly distribute 1" or 3" tablets throughout the water. This pool dispenser uses a locking cap to keep the chlorine safely inside, as well as an adjustable control ring to regular the amount dispersed. Constructed of UV-resistant plastic, it is durable enough to hold up against the outdoor elements. Make maintaining your pool a little easier with this floating dispenser. It is blue and white and easy to assemble and fill. This dispenser makes adding chlorine to your water safer. From the Manufacturer Large capacity dipenser holds up to 3 lbs. of 3" chlorine tablets. Review: Great Product. - 16,000 gallon pool. Two months after purchase it works great! I put three 3 inch chlorine tablets with stabilizer in and opened the vent all the way. The chlorine levels went up to 6 ppm. So I closed it to two of the vents open it went down to 3 ppm. Its "winter" in south Florida (60's at night and 70's in the day) I would imagine when summer comes I will need to open it more to keep the levels. The price was $6.50 with free shipping prime which was half of the pool store. So I am happy that the price is right. Update 6 months later- I went down to two 3 inch stabilized tablets in 16K gallons. Now that summer is here in South Florida my Chorine is between 1-3ppm anything higher is for public pools, so this is perfect for a home pool that is used mostly by just the four of us. Kids can swim with out goggles and no red eyes. I replace two tablets once a week. No need to over fill the thing!! Two tablets max. (hey save some $) As long as your pool in between 1ppm-3ppm you will never have algea with low Phoso ,this is food for the algae so just also add weekly Pool Perfect with Phoso Free, weekly as well. (which makes the water sparkle, I cannot live without it). My pool now 6 months later is flawless and floater seems like new other then fading on the color but no change in performance.. No algae and its 95 degrees out and the hot hot sun daily beating down in Palm Beach. Just brush once a week, run pool pump six hours a day, and run my auto pool cleaner. No pool guy needed. Have not had to shock even once. No other chemicals needed. Just Clorine and Pool perfect for the perfect pool. Every time I go in to Leslie's Pool Supply to have my water tested the guys look upset that they can't sell me anything! ;) Review: Works great - Works great ## Features - 3 lb container accepts chlorine sticks, 1" or 3" tablets - Regulator ring to adjust amount of chlorine dispersed - Constructed of UV-resistant plastic - Assembly required with pool dispenser - Easy to assemble and fill ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000SQ32MY | | Best Sellers Rank | #35,857 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #213 in Swimming Pool Chlorine | | Brand | Swimline | | Brand Name | Swimline | | Customer Reviews | 4.4 out of 5 stars 9,391 Reviews | | Global Trade Identification Number | 00723815087201 | | Included Components | Swimline Adjustable Floating Dispenser | | Item Form | Tablet | | Item Type Name | Chlorine Dispenser | | Item Weight | 8 ounces | | Manufacturer | Swimline | | Manufacturer Part Number | 8720 | | Manufacturer Warranty Description | 1 Year Warranty Against Manufacturer's Defects. Only Applies To New Goods Sold By Approved Sellers. | | Model Number | 8720 | | Number of Items | 1 | | Product Benefits | Maintains Clean Sanitized Water | | UPC | 672875100200 723815087201 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Swimline - **Item Weight:** 8 ounces - **Item Form:** Tablet - **Product Benefits:** Maintains Clean Sanitized Water - **UPC:** 672875100200 723815087201 ## Images ![HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate - Image 1](https://m.media-amazon.com/images/I/61wnd2azE9L.jpg) ![HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate - Image 2](https://m.media-amazon.com/images/I/81TCo4skLHL.jpg) ![HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate - Image 3](https://m.media-amazon.com/images/I/818Re4NsaUL.jpg) ![HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate - Image 4](https://m.media-amazon.com/images/I/71MkWXhUMUL.jpg) ![HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate - Image 5](https://m.media-amazon.com/images/I/71qhPbiNy6L.jpg) ## Available Options This product comes in different **Color** options. ## Questions & Answers **Q: what are the dimensions of the chlorine dispenser** A: The bell is 9" in diameter. Overall height is 7". The chamber that holds the tablets is a bit over 3" in diameter an a bit over 6" tall.It will easily hold 5 of the big (3") chlorine tabs. **Q: can you use 1inch chlorine tablets in it** A: Yes, you can use 1" tablets in it. You can stack up to 3 of them if needed. **Q: From the picture it looks as though the lenses of the sunglasses would glow in the dark-- do they?** A: No. But still really cute! looks have held up very well in our Texas sun! **Q: How many sharks do you get? It pictures two sharks, but many of the comments say "shark" (singular).** A: You only get one shark ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great Product. *by F***Y on February 14, 2015* 16,000 gallon pool. Two months after purchase it works great! I put three 3 inch chlorine tablets with stabilizer in and opened the vent all the way. The chlorine levels went up to 6 ppm. So I closed it to two of the vents open it went down to 3 ppm. Its "winter" in south Florida (60's at night and 70's in the day) I would imagine when summer comes I will need to open it more to keep the levels. The price was $6.50 with free shipping prime which was half of the pool store. So I am happy that the price is right. Update 6 months later- I went down to two 3 inch stabilized tablets in 16K gallons. Now that summer is here in South Florida my Chorine is between 1-3ppm anything higher is for public pools, so this is perfect for a home pool that is used mostly by just the four of us. Kids can swim with out goggles and no red eyes. I replace two tablets once a week. No need to over fill the thing!! Two tablets max. (hey save some $) As long as your pool in between 1ppm-3ppm you will never have algea with low Phoso ,this is food for the algae so just also add weekly Pool Perfect with Phoso Free, weekly as well. (which makes the water sparkle, I cannot live without it). My pool now 6 months later is flawless and floater seems like new other then fading on the color but no change in performance.. No algae and its 95 degrees out and the hot hot sun daily beating down in Palm Beach. Just brush once a week, run pool pump six hours a day, and run my auto pool cleaner. No pool guy needed. Have not had to shock even once. No other chemicals needed. Just Clorine and Pool perfect for the perfect pool. Every time I go in to Leslie's Pool Supply to have my water tested the guys look upset that they can't sell me anything! ;) ### ⭐⭐⭐⭐⭐ Works great *by S***E on March 29, 2026* Works great ### ⭐⭐⭐⭐⭐ Nice quality, heavy duty plastic chlorine dispenser! *by A***. on January 31, 2016* This Swimline large capacity floating chlorine dispenser works great. It's large enough to fit four chlorine tabs inside, tabs that are 3" in diameter (the big ones). The underside that is under the water when it floats has a piece where you can adjust the amount of chlorine that's dispensed in the pool - you can have the maximum or minimum, depending on how much you need to be dissolved in a given time. The lid is easy to take on and off (a quick turn and you pull it up). It also stays on great so I'm not worried if it starts tipping (when the chlorine tabs get low) - that lid will not pop off easily in the water. GREAT product and the price is unbeatable compared to local stores! Obviously, it's a hard plastic and it will wear down over time (probably faster here in Arizona), but I'd definitely purchase this again in the future! Definitely recommended! It's a great, heavy duty dispenser! ## Frequently Bought Together - HYDROTOOLS BY SWIMLINE 8720 Extra Large Capacity Pool & Spa Chemical Dispenser | Compatible With Bromine & Chlorine Supports 1-3’’ Tablets | Adjustable Control Ring For Customizable Flow Rate - Clorox Pool&Spa XTRABLUE 3” Chlorinating Tablets, Individually Wrapped, Kills Bacteria & Stops Algae (5 LB) - ARM & HAMMER Clear Balance Swimming Pool Alkalinity pH Maintenance Tablets, White, 1 Pack, 24 Count --- ## 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.co.uk/products/719551-hydrotools-by-swimline-8720-extra-large-capacity-pool-and-spa](https://www.desertcart.co.uk/products/719551-hydrotools-by-swimline-8720-extra-large-capacity-pool-and-spa) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-23*