does it include kit and o ring and kit needed for install

Yes everything is included. Tubing,fittings,clamps and seals

Whats the difference between Hayward CL220 Off-Line Automatic , and Hayward CL200 Automatic Pool Chemical

The CL220 uses plastic tubing and saddle valves to attach to your pool plumbing. This allows you to drill two small holes into the existing pool plumbing (one hole in a piece of pipe between the pump and the filter and the other in a piece of pipe just after the filter) to install the feeder. It is designed to be easy to install. The CL200 is the same basic unit except that the ports on the bottom are threaded so that you can use threaded fittings to add it to your system. This requires a lot more knowledge about fittings, connectors and plumbing.

Why does the top become hard to twist open?

I have never had a problem with mine , but i only tighten it till it clicks . i have never had any leeks either . when I purchased mine I bought extra o rings and the opener tool but haven't had to use them yet .

I can i stall this on a well system to purify water before entering the house?

I wouldn’t try to purify the water with chlorine. That does not sound safe for consumption. You should check with a local company that purifies water. We had a water softener and a purifier but it used water softener salt and another component was the purifier.

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Hayward CL220 Off-line Automatic Chemical Feeder

Hayward CL220 Off-line Automatic Chemical Feeder

Product ID: 4081359

Details

Brand
Hayward
Item Form
Tablet
Item Weight
4 ounces
Product Benefits
Maintains and
UPC
789610232659

🔒Secure Easy-Lok cover

⚙️Adjustable feed rate dial

🛡️Durable ABS & Viton seal

€ 341.27

Duties & taxes included

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Description

💧 Keep your pool sparkling effortlessly — because your weekends deserve worry-free swim vibes!

BUILT TO LAST - Robust ABS body paired with high-quality Viton seal ensures years of corrosion-free performance.
SAFE SECURE ACCESS - Easy-Lok threaded cover with unique finger-release catch guarantees safe, hassle-free tablet refills.
PRECISION CHLORINE CONTROL - Dial control valve lets you tailor chlorine levels effortlessly for a pristine pool.
VERSATILE TABLET COMPATIBILITY - Works seamlessly with large or small slow-dissolving Tri-Chlor tablets for up to 3 weeks of sanitation.
EFFORTLESS INSTALLATION MAINTENANCE - Corrosion-proof design fits new or existing pools, automating your pool care routine with zero fuss.

The Hayward CL220 Off-line Automatic Chemical Feeder is a durable, corrosion-resistant chlorinator designed for pools and spas. It uses slow-dissolving Tri-Chlor tablets with an easy-to-adjust dial for precise chlorine delivery, securing tablets safely with an Easy-Lok cover and finger-release catch. Ideal for maintaining clean, balanced water automatically for up to three weeks, it fits both new and existing pool systems.

Specifications

ASIN	B000NPGHFE
Best Sellers Rank	#288,303 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #7,823 in Pool & Spa Replacement Parts
Brand Name	Hayward
Customer Reviews	4.4 4.4 out of 5 stars (1,982)
Global Trade Identification Number	00610377003872
Item Form	Tablet
Item Type Name	Off-line Automatic Chemical Feeder
Item Weight	4 ounces
Manufacturer	Hayward
Manufacturer Part Number	CL220
Model Number	CL220
Number of Items	1
Product Benefits	Maintains clean and sanitized water, prevents corrosion, ensures proper water balance
UPC	789610232659 676187753796 610377003872
Unit Count	1 Count

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