Top 10 Pool Closing Chemicals
for December 2021

Recommendations are independently chosen by MOOZ’s editors. Purchases you make through our links may earn us a commission.

1
9.9
SCORE
Qualco Pool Closing Chemical Kit for All Pools up to 30,000 Gallons

Qualco Pool Closing Chemical Kit for All Pools up to 30

000 Gallons

What We like

Not for use in winterizing pools using a biguanide based sanitizing system.

more infoarrow_drop_down

Product Features

  • Ensure peace of mind this fall with a top quality winter pool chemicals
  • Keeps pool water clear and odor free
  • Pool water temperature should be at 65 degrees F or below before winterizing
  • Does not contain Chlorine- Will not bleach pool liners

Ensure peace of mind this fall with a top quality winter pool chemicals Keeps pool water clear and odor free Pool water temperature should be at 65 degrees f or below before winterizing Does not contain chlorine- will not bleach pool liners

2
9.7
SCORE
In The Swim Pool Winterizing and Closing Chemical Kit - Up to 35,000 Gallons

In The Swim Pool Winterizing and Closing Chemical Kit

Up to 35,000 Gallons

by In The Swim Discount Pool Supplies
What We like

Includes: 1 Qt. Winterizer, 1 Qt. Winter Stain-Away, 3 Lbs. Chlorine Free Pool Shock, 1 Winter Sorb, and 1 Winter Pool Floater

more infoarrow_drop_down

Product Features

  • For use with pools up to 35,000 gallons only
  • Not for use in pools on a biguanide based sanitizing system
  • Slow-release floater keeps your pool oxidized all winter long
  • Kits use chlorine-free chemicals that will not stain or bleach liners and is safe for use on all pool surfaces

For use with pools up to 35,000 gallons only Slow-release floater keeps your pool oxidized all winter long Not for use in pools on a biguanide based sanitizing system Kits use chlorine-free chemicals that will not stain or bleach liners and is safe for use on all pool surfaces

3
9.1
SCORE
Qualco Pool Closing Chemical Kit for All Pools up to 15,000 Gallons

Qualco Pool Closing Chemical Kit for All Pools up to 15

000 Gallons

What We like

Not for use in winterizing pools using a biguanide based sanitizing system.

more infoarrow_drop_down

Product Features

  • Ensure peace of mind this fall with a top quality winter pool chemicals
  • oes not contain Chlorine- Will not bleach pool liners
  • Keeps pool water clear and odor free
  • Pool water temperature should be at 65 degrees F or below before winterizing

Ensure peace of mind this fall with a top quality winter pool chemicals Oes not contain chlorine- will not bleach pool liners Keeps pool water clear and odor free Pool water temperature should be at 65 degrees f or below before winterizing

4
9
SCORE
Rx Clear Winter Pool Closing Kits | Winterizing Chemicals for Above or Inground Swimming Pools | Open to a Crystal Clear Pool in The Spring | Up to 20,000 Gallons

Rx Clear Winter Pool Closing Kits

Winterizing Chemicals for Above or Inground Swimming Pools, Open to a Crystal Clear Pool in The Spring, Up to 20,000 Gallons

by Rx Clear
What We like

LESS WORK - Adding pool closing chemicals to your water will help keep it clear and blue for the next season. Closing your swimming pool with the right winter pool chemicals can save you a lot of work when it comes time to open your swimming pool for the summer. Our powerful combination of winterizing chemicals help to prevent algae growth, eliminate minerals and metals that can cause liner stains and build-up, and purge lotions, oils, grease, and grime from your pool water.

more infoarrow_drop_down

Product Features

  • ALL IN ONE - This premium Rx Clear Winter Pool Chemical Closing Kit has everything you need to get your pool water ready for hibernation. Have an easy closing this winter, as well as a hassle-free opening in the spring! The Premium Closing Kit is suitable for pools up to 20,000 gallons.
  • TRUSTED POOL CHEMICALS - Maintain your swimming pool or spa with reliable pool chemicals and treatment supplies that you can depend on from Rx Clear. The Rx Clear brand is the premier choice for a trusted cleaning product to keep your pool in its best shape.
  • KEEP CONTROL - Prevents stains, scaling and brown water due to mineral build up. Rx Clear Winter Pool Chemical Closing Kits help keep control on iron levels and the levels of other metals in pool water. Using this kit helps stop corrosion of metal surfaces such as light fixtures, railings, ladders, screws, pool cover components, pool heater components, and metals in your pump or filter.
  • KEEP YOUR POOL SPARKLING - Rx Clear Winter Pool Chemical Closing Kits comes with stabilized chlorine tablets that are the best choice for an effective and economical pool maintenance program all season long. Ordering a larger winterizing kit than your pool size may help to protect against winter cover problems.

Keep your pool sparkling - Rx Clear winter pool chemical closing kits comes with stabilized chlorine tablets that are the best choice for an effective and economical pool maintenance program all season long. ordering a larger winterizing kit than your pool size may help to protect against winter cover problems. All in one - this premium Rx Clear winter pool chemical closing kit has everything you need to get your pool water ready for hibernation. have an easy closing this winter, as well as a hassle-free opening in the spring! the premium closing kit is suitable for pools up to 20,000 gallons. Trusted pool chemicals - maintain your swimming pool or spa with reliable pool chemicals and treatment supplies that you can depend on from Rx Clear. the Rx Clear brand is the premier choice for a trusted cleaning product to keep your pool in its best shape. Keep control - prevents stains, scaling and brown water due to mineral build up. Rx Clear winter pool chemical closing kits help keep control on iron levels and the levels of other metals in pool water. using this kit helps stop corrosion of metal surfaces such as light fixtures, railings, ladders, screws, pool cover components, pool heater components, and metals in your pump or filter.

5
8.8
SCORE
Rx Clear Winter Pool Closing Kit | Non-Chlorine Winterizing Chemicals for Above or In Ground Swimming Pools | Open to a Crystal Clear Pool in The Spring | Up to 20,000 Gallons

Rx Clear Winter Pool Closing Kit

Non-Chlorine Winterizing Chemicals for Above or In Ground Swimming Pools, Open to a Crystal Clear Pool in The Spring, Up to 20,000 Gallons

by Rx Clear
What We like

CHLORINE FREE - This premium Rx Clear Winter Pool Closing Kit is a chlorine free winterizing kit that provides winter maintenance during the off season. This closing kit has everything you need to get your pool water ready for hibernation including Liquid Winterizer and Winterizing Powder along with closing instructions. Have an easy closing this winter, as well as a hassle-free opening in the spring! The Premium Closing Kit is suitable for pools up to 20,000 gallons.

more infoarrow_drop_down

Product Features

  • LESS WORK - Adding pool closing chemicals to your water will help keep it clear and blue for the next season. Closing your swimming pool with the right winter pool chemicals can save you a lot of work when it comes time to open your swimming pool for the summer. Our powerful combination of winterizing chemicals help to prevent algae growth, eliminate minerals and metals that can cause liner stains and build-up, and purge lotions, oils, grease, and grime from your pool water.
  • KEEP CONTROL - Prevents stains, scaling and brown water due to mineral build up. Rx Clear Winter Pool Chemical Closing Kits help keep control on iron levels and the levels of other metals in pool water. Using this kit helps stop corrosion of metal surfaces such as light fixtures, railings, ladders, screws, pool cover components, pool heater components, and metals in your pump or filter.
  • TRUSTED POOL CHEMICALS - Maintain your swimming pool or spa with reliable pool chemicals and treatment supplies that you can depend on from Rx Clear. The Rx Clear brand is the premier choice for a trusted cleaning product to keep your pool in its best shape.
  • FORMULATED FOR YOUR POOL - Each kit has been concentrated for a single dosage in your pool size. No measuring required! All kits are formulated for specific pool sizes - just order the kit to fit your pool. Close your pool properly this fall and ensure a sparkling clean pool next spring! Our kits supply just the right amount for your pool size. Makes your pool closing a snap while saving money too! No measuring required!

Trusted pool chemicals - maintain your swimming pool or spa with reliable pool chemicals and treatment supplies that you can depend on from Rx Clear. the Rx Clear brand is the premier choice for a trusted cleaning product to keep your pool in its best shape. Keep control - prevents stains, scaling and brown water due to mineral build up. Rx Clear winter pool chemical closing kits help keep control on iron levels and the levels of other metals in pool water. using this kit helps stop corrosion of metal surfaces such as light fixtures, railings, ladders, screws, pool cover components, pool heater components, and metals in your pump or filter. Formulated for your pool - each kit has been concentrated for a single dosage in your pool size. no measuring required! all kits are formulated for specific pool sizes - just order the kit to fit your pool. close your pool properly this fall and ensure a sparkling clean pool next spring! our kits supply just the right amount for your pool size. makes your pool closing a snap while saving money too! no measuring required! Less work - adding pool closing chemicals to your water will help keep it clear and blue for the next season. closing your swimming pool with the right winter pool chemicals can save you a lot of work when it comes time to open your swimming pool for the summer. our powerful combination of winterizing chemicals help to prevent algae growth, eliminate minerals and metals that can cause liner stains and build-up, and purge lotions, oils, grease, and grime from your pool water.

6
8.8
SCORE
Doheny's Ultimate Pool Winterizing and Closing Chemical Kit (for Pools Up to 35,000 Gallons)

Doheny's Ultimate Pool Winterizing and Closing Chemical Kit (for Pools Up to 35

000 Gallons)

by Doheny's
What We like

OUR POOL MASTER NATURAL CHEMISTRY CLOSING KIT IS THE MOST POWERFUL POOL CLOSING CHEMICAL KIT ON THE MARKET! Similar To Our Ultimate Kit For Pools Up To 35,000 Gallons - BUT, Also Includes 1 LITRE BOTTLES OF Natural Chemistry's Metal Free and Pool Magic Fall & Phos-Free!

more infoarrow_drop_down

Product Features

  • EACH ULTIMATE CLOSING KIT CONTAINS Doheny's Metal Out - the ULTIMATE Stain, Rust & Scale Preventer; Winter Guard Algae Control; Time-Released Winter Oxidizing Tablets - our SECRET IN THE BOX(!), and Chlorine-Free Oxidizing Shock.
  • TAKE THE GUESS-WORK OUT OF CLOSING YOUR POOL IN THE FALL WITH DOHENY'S POOL CLOSING KIT! This convenient package contains all of the chemicals you need to get your pool ready for the winter months!
  • FOR LARGER POOLS, SIMPLY BUY MULTIPLE KITS!
  • BENEFITS OF DOHENY'S POOL CLOSING KITS INCLUDE eliminating the need to buy all of your pool closing chemicals separately. Kits work for pools 7,500 to 35,000 gallons. All kits include easy to follow instructions!

Benefits of Doheny's pool closing kits include eliminating the need to buy all of your pool closing chemicals separately. kits work for pools 7,500 to 35,000 gallons. all kits include easy to follow instructions! For larger pools, simply buy multiple kits! Each ultimate closing kit contains Doheny's metal out - the ultimate stain, rust & scale preventer; winter guard algae control; time-released winter oxidizing tablets - our secret in the box(!), and chlorine-free oxidizing shock. Take the guess-work out of closing your pool in the fall with Doheny's pool closing kit! this convenient package contains all of the chemicals you need to get your pool ready for the winter months!

7
8.5
SCORE
In The Swim Ultimate Winterizing and Closing Chemical Kit - Up to 35,000 Gallons

In The Swim Ultimate Winterizing and Closing Chemical Kit

Up to 35,000 Gallons

by ALLCHEM INDUSTRIES, INC.
What We like

Includes: 1 Qt. Metal Free, 1 Qt. Pool Magic Spring & Fall + PhosFree, 3 Lbs. Chlorine Free Pool Shock, 1 Winter Sorb, and 1 Winter Pool Floater

more infoarrow_drop_down

Product Features

  • Not for use in pools on a biguanide based sanitizing system
  • Slow-release floater keeps your pool oxidized all winter long
  • For use with pools up to 35,000 gallons only
  • Kits use chlorine-free chemicals that will not stain or bleach liners and is safe for use on all pool surfaces

Slow-release floater keeps your pool oxidized all winter long For use with pools up to 35,000 gallons only Kits use chlorine-free chemicals that will not stain or bleach liners and is safe for use on all pool surfaces Not for use in pools on a biguanide based sanitizing system

8
7.4
SCORE
HTH 91021 Pool Care Kit Opening and Closing Maintenance Bundle

HTH 91021 Pool Care Kit Opening and Closing Maintenance Bundle

by Innovative Water Care
What We like

INCLUDED IN KIT: Two 1 lb. bags of HTH Ultimate Shock Treatment; One 12 oz. bottle of HTH Algae Guard Granules; One 1.25 lb. bottle of HTH Metal & Stain Defense Granules; On pack of 10 HTH Multi-purpose 6-Way Test Strips

more infoarrow_drop_down

Product Features

  • BENEFITS: Provides all the necessary chemicals and tools to successfully open your pool for the swimming season and to close it at the end
  • FEATURES: Prevents stain and scale; Kills bacteria; Clarifies; Shocks; Prevents algae; Made in USA
  • COMPATIBILITY: For treating up to 20,000 gallons of water; Fresh and saltwater systems
  • USE: Follow instruction for application of each included product

Compatibility: for treating up to 20,000 gallons of water; fresh and saltwater systems Benefits: provides all the necessary chemicals and tools to successfully open your pool for the swimming season and to close it at the end Use: follow instruction for application of each included product Features: prevents stain and scale; kills bacteria; clarifies; shocks; prevents algae; made in usa

9
7.4
SCORE
GLB Pool & Spa Products 71500 24000-Gallon Winter Pool Closing System

GLB Pool & Spa Products 71500 24000-Gallon Winter Pool Closing System

by GLB
What We like

Measures 10.1-inches in length by 3-inches in width by 2.7-inches in height

more infoarrow_drop_down

Product Features

  • Contains everything you need to close your pool; makes spring pool opening hassle-free compatible with ozone, chlorine and bromine sanitizers
  • Sequa-sol sequestering agent holds iron, manganese, copper and calcium in solution so these minerals do not react with other elements in the water
  • Oxy-brite chlorine free shock treatment oxidizes organic contaminants that cause odors, cloudy water, skin and eye irritation
  • Algimycin winter algaecide is an EPA registered, non-foaming, non-metallic winter algaecide that keeps pools algae-free all winter

Oxy-brite chlorine free shock treatment oxidizes organic contaminants that cause odors, cloudy water, skin and eye irritation Algimycin winter algaecide is an epa registered, non-foaming, non-metallic winter algaecide that keeps pools algae-free all winter Sequa-sol sequestering agent holds iron, manganese, copper and calcium in solution so these minerals do not react with other elements in the water Contains everything you need to close your pool; makes spring pool opening hassle-free compatible with ozone, chlorine and bromine sanitizers

10
7.4
SCORE
poolife Opening/Closing Kit

poolife Opening/Closing Kit

by poolife
What We like

Convenient and easy to use kit for opening or closing your pool

more infoarrow_drop_down

Product Features

  • This product will prevent the growth of algae for complete pool enjoyment.
  • For best results, use with other poolife pool care products

For best results, use with other poolife pool care products This product will prevent the growth of algae for complete pool enjoyment.

expand_less

I Agree
We use cookies to enhance and personalise your experience with us by collecting information about the pages you visit and actions taken on the site. More details