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SWIMLINE HYDROTOOLS 87501 Economy In-Line Automatic Chlorine Feeder Chlorinator Adjustable Output 4.2 Lbs Capacity | Universal Compatibility | Above Ground & Inground Swimming Pool Bromine Install

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Availability: Only 4 left in stock, order soon!
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Arrives Sep 25 – Oct 3
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Color: In-Line Feeder (4.2 Lbs)


Features

  • {AUTOMATIC CLEAN} The Hydrotools Automatic Chlorine Feeder series constantly works in the background to dissolve and distribute chlorine or bromine into your pool to produce crystal clear water for your swimming pool or spa. Saves time & chlorine!
  • {SIMPLE OPERATION} Hydrotools double reinforced lid allows for a tight seal & easy access to safely apply tablets or rods. The chlorinator comes with an integrated 360 adjustment dial to customize output level
  • {EASY INSTALL} Its Universal design serves as a simple replacement or addition to your existing pool or spa equipment. No need to use expensive services or complicated tools to implement works automatically with your pool filter and pump
  • {HYDROTOOLS QUALITY GUARANTEED} Constructed with commercial grade thermoplastic built to withstand corrosion, UV rays & long-term wear and tear. Features double reinforced assembly system for superior strength, durability, & longevity
  • {PRODUCT SPECIFICATIONS} 2 Inch Inlet & Outlet Connection Points; works with large or small slow dissolving tablets; 4.2 Lbs Capacity; Pairs well with Hydrotools Sand & Cartridge filter systems
  • {HYDROTOOLS PRO TIPS} Item # 87501; Compatible with chlorine & Bromine (DO NOT MIX); Works perfectly as a replacement feeder for existing top brand chlorinators; Hydrotools is an independently operated brand

Description

Hydrotools By Swimline pool equipment has set the standard for effective pool filtration & cleaning for over a decade. With our headquarters located in New York USA, the Hydrotools team has dedicated years of experience to ensure top quality pool products that are built to last, at the most competitive prices in the industry, while also providing customer service committed to your experience as a Hydrotools customer for years to come. The Automatic Chlorine Feeder series was designed to take the hassle out of expensive and tedious work adding chemicals to your pool. Its structure was designed strategically so it can serve as a drop-in replacement to major brands such as Hayward and Pentair without requiring heavy duty tools or alterations - the chlorinator works automatically with your existing pump and filter system. Constructed with commercial grade, double-reinforced thermoplastic, these cells were built to tackle all the elements, sporting UV and corrosion resistance. Innovative double reinforced assembly mold and design systems work to ensure superior strength, durability, and increase longevity. Installing a Hydrotools Chlorine Feeder is an investment both in your time, working in the background, and also your wallet in the long term - optimizing the perfect amount of chlorine needed to purify your pool without waste. Utilize Hydrotools Chlorinators for crystal clear water so you can enjoy more time in the pool with friends and family. From the Manufacturer The economy in-line automatic chlorine feeder takes the work and the worry out of your hands with its automatic dispenser.

Brand: Swimline


Item Form: Tablet


Product Benefits: Prevents Corrosion


UPC:


Global Trade Identification Number: 13


Brand: Swimline


Item Form: Tablet


Product Benefits: Prevents Corrosion


UPC: 723815875013


Global Trade Identification Number: 13


Number of Items: 1


Unit Count: 1.0 Count


Product Dimensions: 17.3 x 8.2 x 5.8 inches


Item Weight: 2.11 pounds


Department: Unisex-Adult


Manufacturer: Swimline


Country of Origin: China


Item model number: 87501


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 25 – Oct 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Working great!
Color: In-Line Feeder (9 Lbs) W/ Accs.
So far so good! Helping with the pool maintenance!!
Reviewed in the United States on July 15, 2025 by Deanna C.

  • Home equipment
Color: In-Line Feeder (4.2 Lbs)
Great product, fair price
Reviewed in the United States on July 6, 2025 by Gamalier Crespo

  • Terrible quality
Color: Off-Line Feeder (9 Lbs)
Let me start out by saying I normally do not write reviews about products. However, this is a terribly made product. Usually people will write a review about a product because they want to voice their opinion about how bad something is or how good something is. They usually don't take time out of their day to say, "Hey, this product as OK." With that in mind, this is one of those products that was bad enough that I thought I should voice my opinion. I got this chlorine feeder to replace my old in-line model that broke a leak. I purchased this because it was a good price but ultimately when it arrived it did not meet expectations. First it was my fault that I didn't know the difference between an in-line and off-line chlorine feeder. This is an off-line one, meaning you have to tap into your pipes to make it work (not just screw it into the existing pipe). It comes with 2 non-specialized band clamps that really do nothing to keep the drill holes you have to make from leaking. They should provide you 2 additional clamps or clamps that are designed to hold down a plug around the sides of it not just on a single edge (you'll know what I mean if you buy this). I ended up buying 2 additional clamps to hold the plug taps in place and I wish that was the only problem. When I did finally get it installed per the instructions, I noticed a sizable leak coming from the chlorine feeder inlet. I tugged at the inlet side and the whole plate came off. Please note that this is not supposed to come off. This is supposed to be a permanent plastic weld that keeps that piece water-tight and in place. Well, thinking that perhaps it was just a slight manufacturing defect, I decided to get some glue and let it cure overnight to fix the inlet side. (fast forward to the next day) I hooked the unit back up and in about 5 minutes the outlet side started dripping. I gave a slight tug on that side and it was the same problem, the plastic welds were not strong enough to keep them in place. Since I had already glued the one side, I couldn't sent it back so I came back to amazon and ordered a Hayward CL200. No more crappy tapping into my pipes and the build quality is 100% better. Don't get me wrong, I like saving money as much as the next guy but the hassle wasn't worth it this time. The CL200 is double the price of the Hydro Tools 87503 but you're getting a 100 times better product. Even the lid is a better design. You don't have to super tighten the CL200 to keep leaks from coming out of the top because they have this floating lid design. I'm not here to sell you on a CL200 but I am here to try to persuade you not to waste your money on this. Hopefully you find this review helpful. Have fun swimming! ... show more
Reviewed in the United States on July 19, 2011 by NopePlease

  • Good Feeder
Color: In-Line Feeder (9 Lbs)
I purchased this as part of my "sand filter upgrade" that I did on my Intex metal-frame above ground pool. I grew up with a pool so I've worked with their care and feeding over the years. I'm not a pool professional but I'm not an amateur either. I think the key here, before you buy this, is that you have to understand that the chlorinator takes some special considerations or it will be a problem. As for this feeder, I have two minor complaints; First, there is no check valve so you need a valve between it and the pool or else you will get a backflow of pool water when you open it up. (Or, I guess you could mount it above the water line but that is going to require extra head on your pump) Hayward feeders usually have a check valve on the return stem that helps keep that from happening. I wish this feeder had it. Secondly, the threads were a bit loose which required an extra dose of Teflon tape. They are a generous 1.5" which may be a result of the molding process... plastic parts aren't known for their accuracy... but extra tape solved the issue. It would have been better if they were tight rather than loose and I question if there is any taper at all to them. As for some of the other complaints I see on here... I've had no problems with the adjustment knob. I've found it responsive and solid. I've had no leaks other than the initial ones around the pipe threads that easily fixed with tape. And the lid assembly is at least as solid as the Hayward feeders I've used in the past. Really, I have no complaints with the unit and wonder what the ones claiming it to be trash received. As for the special treatment an automatic feeder needs, you have to know that the device works as a vacuum system. The lid has a seal in it and a mechanism to keep that system regulated. If you twist the lid on cross-threaded or otherwise damage the lid, the whole thing stops working. You also have to drain it in the winter and make sure the drain plug stays out and the lid off. The thing is plastic. If there is water in it and it freezes, it will break. You also have to check the chlorine levels in your pool. I'm amazed at the people who blame a green pool on the chlorine feeder, the skimmer, or the pump. The system doesn't take care of itself... it needs you to watch over it. Check your levels daily. If your Chlorine is a no-read, I suggest opening the feeder and seeing if you have any tabs left. The thing doesn't make chlorine... you need to add it. I have a 4' deep, 12' round Intex pool and I'll consume most of a bucket of 3" tabs this summer. Which brings me to the final point... the device is directional. If you install it backwards you won't get chlorine fed into your pool. But you would pick that up in your daily testing. Overall, I have nothing but those two minor complaints to make. I found the unit solid, works well, and was actually better than I expected given the price. If you are putting in a 30 year permanent install, spend a few extra bucks and get a Hayward. But if you are on a budget or don't need it to last 30 years, this is a great feeder. ... show more
Reviewed in the United States on June 7, 2013 by Evil J

  • Works great.
Color: In-Line Feeder (9 Lbs) W/ Accs.
Pools back up and running. Our old one (was this exact same unit) and it lasted over 10 years! Expect this will be the same.
Reviewed in the United States on June 23, 2025 by Stan Traylor

  • Buena combinación de precio producto.
Color: In-Line Feeder (4.2 Lbs)
Muy bueno de gran calidad.
Reviewed in the United States on June 22, 2025 by Marcelo

  • Poor lid design
Color: In-Line Feeder (9 Lbs) W/ Accs.
Third time I opened the lid the o-ring was damaged and I could not get a seal. Poor design. Need a replacement o-ring ASAP!!! Only had the unit installed for just a little over a month.
Reviewed in the United States on July 5, 2025 by Woodskin

  • n/a
Color: In-Line Feeder (9 Lbs) W/ Accs.
easy to install
Reviewed in the United States on June 10, 2025 by Jesse James

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