Offline Hayward Chlorinator


MANUFACTURERHayward Pool Products

  (5 out of 5 Stars on 7 Ratings)
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Description Documents1 How To's4 FAQs6 Parts1 Reviews5

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Product Details

WARRANTY1 year warranty

Product Description

Looking to reduce the time spent on pool maintenance? Tired of that unsightly chlorine dispenser floating in the pool? The CL220 Offline Chlorinator automatically feeds chlorine to your inground pool, working with your existing pump and filter system.  Offline installation is a convenient option when replumbing or renovation is not desired. Chlorinator tubing is attached directly to the existing pipe and the returning water flows through the tubing into the chlorinator and back into the pool.  Features a simple dial valve which allows you to adjust the chlorine feed rate.   Tough ABS thermoplastic body with a long-lasting Viton seal for the lid.  Holds 9 lbs of Trichlor tablets or sticks.

Hayward Chlorinator CL220 Features:

  • Holds large or small slow dissolve tablets or sticks
  • Dial valve has 9 settings allowing you to control the amount of chlorine
  • Easy-Lok™ threaded cover makes it safer and easier to add chlorine
  • Unique finger-release catch on cover for extra security
  • Includes tubing and clamps for offline installation
  • Simple DIY installation for the handyperson


  • Chemical Capacity: 9 lbs.
  • Dimensions: (W) 8-1/4 in. x (H) 15-1/2 in.
  • Weight: 46 lbs.

Hayward Chlorinator CL220 Flow Ratings: (GPM = Gallons Per Minute)
CL100 - Used with pumps with flow rating of 30-50 GPM
CL200 - Used with pumps with flow rating of 50-80 GPM
CL2002S - Used with pumps with flow rating of 50-90 GPM
CL110 - Used with pumps with flow rating of 30-50 GPM
CL220 - Used with pumps with flow rating of 50-90 GPM

Hayward Chlorinator CL220 Miscellaneous Notes

Note: Chemical feeders should always be installed after a pool heater.

CAUTION: Extreme care must be exercised when adding chemicals to your pool. Concentrated chemicals may react violently if they mix in the chemical feeder, causing a fire or explosion, which may result in PROPERTY DAMAGE, PERSONAL INJURY or DEATH.

CAUTION: Never use any petroleum based lubricants on the cover o-ring. Regular lubrication is necessary to allow for easy cover removal. Use non-petroleum based lubricants such as Jack's No. 327 lube or Ivory bar soap.

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CL220 Owner's Manual (192.15 KB)

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Product FAQs


Q:Does the CL220 come with the hose, clamp and whatever else is needed to install it?

A:The CL220 Offline Chlorinator does include tubing and clamps.  Please see the owner's manual for a complete parts list.


Q:I have a really hard time taking the cap off my chlorinator. Is there a wrench that I can buy?

A:If you are having difficulty removing the lid on your Hayward CL200 or CL220, you can the Dura Grip Lid Wrench: It fits securely on the lid, making removal a breeze.  


Q:What is the difference between an inline and offline chlorinator?

A:An inline chlorinator would be plumbed directly inline with the plumbing.  For an existing pool, this would mean a section of pipe would need to be cut out to install the chlorinator.  An offline chlorinator attaches to existing plumbing by chlorinator tubing (holes would be drilled into existing pipe to attach the tubing.)


Q:How do I know if one chlorinator is enough for my pool?

A:The Hayward CL200 or CL220 chlorinator will provide enough chlorine for up to 40,000 gallons of water.  You would need to calculate the volume of your pool to determine how many chlorinators you would need.  For example, if you have 60,000 gallons then you would use two CL200 or CL220 chlorinators.


Q:Is there a feedback mechanism that tells the unit the chlorine balance in the pool? Is this a way for me to automate addition of clorine to keep it always at the correct level? Or, just another place to put the tab aside from the the drain basket?

A:There is a dial on this unit which has a setting from 1-10 If you set the dial on 1 it will be letting the least amount of chlorine to the pool and if you have it set at 10 this would send the most amount of chlorine to the pool. So you can automate the feed of chlorine to the pool but you will still need to manually test your water. We do not recommend placing tablets in the skimmer basket because this high concentration of chlorine goes directly back to your pump and can cause corrosion to your pool equipment. If you do not go with the automatic chlorinator we would recommend at least going with one of our floating chlorinators so you do not damage your equipment you may view our floating chlorinators here


Q:Can I use granular, or must I use 3" tablets or stick?

A:We recommend using tablets or sticks, and not to use granular with chlorinators.

Customer Reviews

Ratings Summary

Average Rating:   (5 out of 5 Stars)

Recommended: (100%) 7 of 7 customers would recommend this product to a friend.

7 Ratings 5 star:   (7) 4 star: (0) 3 star: (0) 2 star: (0) 1 star: (0)

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The Most Helpful Review

1 of 1 person found the following review helpful:

   (5 out of 5 Stars) Keeps the water clear and sparkling.

Reviewed By: from Odessa, TX. ()

Pros: Good Product.

This was a replacement. Will continue to use the Hayward Clorinater for clear, sparkling water all season.

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The Most Recent Reviews

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   (5 out of 5 Stars)

Reviewed By: from New Jersey ()

Easy to install

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   (5 out of 5 Stars) Chlorinator

Reviewed By: from Somerville, NJ ()

Pros: Works great

This was a replacemnent of one used for 7 years. Work great.
Lighter than the original, but apparently as strong.

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   (5 out of 5 Stars) Easy Installation

Reviewed By: from Seaford, VA ()

Hayward chlorinator is easy to install and works great. Comes with correct hardware to complete the job. INYO also provided soft copy of instructions.

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   (5 out of 5 Stars) Keeps water sparkling clean.

Reviewed By: from Odessa, TX. ()

Pros: Gets the Job Done.

Cons: None

This is a replacement product. Will always use it with my pool equipment.

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