The 9 best winterizing kits for pools of 2025

Convenient: In The Swim's Pool Winterizing and Closing Chemical Kit streamlines pool closing with all necessary chemicals included, saving time and chemical cost.

Safe and Reliable Protection: Our winter chemical kits provide reliable protection without the risk of compromising other pool winterizing chemicals or causing damage to pool surfaces.

Versatile for All Pool Sizes: Kits cater to pools of any shape and size. For in-between sizes, opt for the next size up. Multiple kits are available for pools exceeding 35,000 gallons.

Effective Oil Absorption: In The Swim's Winter Sorb absorbs 40 times its weight in oils, preventing waterline scum. Kits include 1 white or 2 blue sorbs.

Comprehensive Kit Components: Kit includes 1 Qt. Winterizer, 1 Qt. Winter Stain-Away, 2 Lb. Chlorine Free Pool Shock, 1 Winter Sorb, and 1 Winter Pool Floater.

【Vertical floating is considered a normal phenomenon】Say Goodbye to Green Water - Our winter kit maintains the clarity and vibrant blue color of the pool water for the next season.

Carefree Pool Opening - Bid farewell to laborious pool maintenance rituals in the coming year. Efficient Solutions for Time, Effort and Money.

3-in-1 Dual Protection - POOLHACKER winter kit safeguards pool surfaces without compromising other treatments.

Suitable for All Pools - The two balls are suitable for any shape or size of pool with a capacity of 30,000 gallons or below.

Easy to use - Simply place two winter balls in the pool before closing, saving time on pool shutdown without the need for complex procedures.

Do your future self a favor and close your pool the right way - using AquaDoc's revolutionary 3-Part Pool Winter Closing Kit. This is a complete inground pool winterizing kit and above ground pool winterizing kit to use as an end of season pool closer. Be sure to blow out your pipes or just pair this with Anti-Freeze and use our enzyme-based pool winterizing chemical to make pool closing and opening a breeze.

Comprehensive Winterizing Trifecta Solution: Ideal for both inground and above ground pools, our 3-Part Pool Winter Kit provides a 2lb Dry Granular Winterizer, 2lb Winter Oxy Plus, and 1lb Winter Pool Sequestering Compound to make pool closing & opening as easy as possible.

Dry Granular Pool Winterizer (2lb): A cornerstone for winter care, this component maintains water clarity and quality during the colder months, setting the stage for a pristine pool come spring.

Winter Oxy Plus (2lb): Moving beyond traditional superchlorination, this advanced pool chemical refreshes pool water and combats common pool odors that brew during the winter, ensuring a pleasant, chemical-free scent and appearance when opening your pool in the Spring or Summer.

Winter Pool Sequestering Compound (1lb): A versatile asset, this compound tackles everything from hardness deposits and scale removal in filter systems to protecting metal surfaces, making it indispensable for both inground and above ground pool winterizing needs.

MADE IN THE USA - At AquaDoc, we're the Pool Open and Close experts. All of our pool chemicals are held to the highest standards and made exclusively in the USA. Trust the experts with all of your pool maintenance needs.

NOTE: We are currently unable to ship Winter Closing Kit to the state of California due to State Restrictions

Fits 99% Of All Skimmers Made

Screws In Place - Stays In Place

Designed To Absorb The Expansion Of Winter Freeze-Up In Skimmers

No Assembly Required

Effortless Pool Closing: Take the guesswork out of winterizing your pool with Doheny's Pool Closing Kit—everything you need for a hassle-free pool shutdown!

Works for Pools 7,500-35,000 Gallons: Each kit includes easy-to-follow instructions to ensure a smooth and effective closing process.

Ultimate Closing Kit Includes: Doheny's Metal Out (Stain, Rust & Scale Preventer), Winter Guard Control, Time-Released Winter Oxidizing Tablets (our "SECRET IN THE BOX"!), and Oxidizing Shock.

Most Powerful Pool Closing Kit: The Pool Master Closing Kit is our most advanced option—just like the Ultimate Kit but with 1-quart bottles of Metal Free and Pool Magic Fall & Phos-Free for extra protection!

For Larger Pools: Simply purchase multiple kits to cover bigger pool sizes with the same level of protection.

Prepare your pool for the winter season with the Pool Elevate Winterizing Kit, tailored for pools up to 12,000 gallons. Ideal for both above ground and in-ground pools, this kit provides everything you need for winter maintenance, ensuring your pool stays in great shape no matter the type.

This winterizing kit is thoughtfully assembled to simplify the winterization process. Complete with all essential components and easy-to-follow instructions, it's perfect for pool owners of any experience level, making the process quick and hassle-free.

With the Pool Elevate Winterizing Kit, you can confidently protect your pool from common winter issues like debris accumulation and water quality deterioration. This thoughtfully designed kit helps keep your pool clean, clear, and well-maintained, ensuring it’s ready for a smooth start when the warmer months return.

One of the standout features of this kit is the inclusion of premium winterizing solutions, expertly formulated to help maintain sparkling water and preserve your pool’s pristine appearance. These solutions work to prevent scale and stains, ensuring your pool remains in exceptional condition, so it's ready to impress when the warmer days return.

The Pool Elevate Winterizing Kit is equipped with 1 lb each of Winter Oxy Plus, Winter Sequestering, and a Dry Granular Winterizer. With the convenience of 2 kits treating up to 24,000 gallons, you’ll have everything you need to confidently prepare your pool for winter and keep it in great shape.

Made in United States

Package Weight :6.509 kg

Package dimensions :26.162 cm (H) x 25.907 cm (L) x 25.907 cm (W)

Product type :OUTDOOR LIVING

All in One: The Rx Clear pool closing kit has everything you need to get your pool water ready for hibernation. This pool winterizing kit includes 3 - 1lb of Alkaplus pH Powder, 3 - 1Ib All-in-One Shock X-Tra, 3 - 1Ib winterizing Powder, 1 - 32ox Winter Stain Out, and 2 Winter Dispensers.

Algae Prevention: This pool closing kit for above ground and inground pools balances chemicals to help prevent algae growth, staining, and scaling during the winter months when the pool is not in use.

Equipment Protection: Pool closing chemicals, such as an Rx Clear pool winterizing kit, protect the pool surface and equipment from damage caused by microorganisms and freezing temperatures.

Compatibility: The Rx Clear inground and above ground pool winterizing kit are well-matched with pools up to 45,000 gallons.

Effortless Pool Opening: This inground and above ground pool closing kit will provide correct chemical levels when closing your pool ensuring more effective opening in the spring, saving time and money on maintenance.

More Practical Match: We combine 6 pack pool water bags with 4 pack corner water tubes to effectively cover all corners of the pool cover and maintain stability. Pool cover weight in the corners makes the pool cover more resistant to wind, reinforcing those areas most susceptible to strong winds. This helps protect your pool from leaves, bugs, and debris even during windy winter weather. Save you time and effort cleaning your pool

Durable & Cold Resistance: These pool cover water tubes are made of PVC material, thickness 0.6mm, corner water tubes 0.4mm, abrasion resistance, not easy to tear. With cold resistance to temperatures as low as -10 ° F, this means it can withstand winter winds and heavy snow without losing shape and effectiveness, lasting for multiple seasons. Fill the water up to 2/3 capacity to prevent freezing expansion that could cause the water tubes to break

Single-chamber Design: Our pool cover weights feature a unique single-chamber design, providing larger water storage space and increased weight to ensure strong pressure on the ground, resulting in stronger sealing. With reduced seams and a lower risk of leakage compared to double-chambers, its also makes operation easier and faster

Screw Cover: Ordinary buckle covers often prove difficult to close and may cause water overflow when closed. Our screw caps are more user-friendly with rubber seals inside to effectively prevent water from spilling out, and easily filled and closed by one person. The pool water tubes nozzle is designed with a wide mouth and can be inserted directly into the garden hose for easy filling

Versatility: The single chamber design is flexible enough to bend easily around different shapes of pools,more close to the edge of the pool. Maintain your pool's cleanliness while keeping its cover intact