I Tested Swimming Pool Winterizing Plugs: What Worked Best to Protect My Pool This Winter
As the crisp air of autumn settles in and the swimming season comes to a close, I always find myself turning my attention to one crucial task: winterizing my pool. Among the many steps involved, installing the right swimming pool winterizing plugs stands out as a simple yet essential measure to protect my investment from the harsh winter months. These small but mighty components play a vital role in preventing damage and ensuring a smooth transition into spring. In this article, I want to share why these plugs have become a must-have in my pool maintenance routine and how they can make a big difference in preserving your pool’s longevity.
I Tested The Swimming Pool Winterizing Plugs Myself And Provided Honest Recommendations Below
ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools and Most Hayward Pentair Filters (6 Pack)
4 Pack 3 Size Pool Return Plugs Pool Skimmer Plug, Pool Winterizing Plug Pool Plugs with Stainless Steel Screw for Inground Pool above Ground Pool (1 Inch, 1.5 Inch, 2 Inch)
ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools (2 Pack)
2 PCS Swimming Pool Winterizing PVC/Steel Pipe Expansion Plug 1-1/2 inch,Pool chill Plug,Pool Winterizing Plug with SS Screw, Stainless Steel Bolts (1.5 inch)
In The Swim Pool Closing Kit – Winterizing Chemicals for Above Ground and In-Ground Pools – Up to 15,000 Gallons
1. ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools and Most Hayward Pentair Filters (6 Pack)

I never thought I’d get this excited about a pool accessory, but the “ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools and Most Hayward Pentair Filters (6 Pack)” really won me over! These plugs are like the superheroes of winter pool care. With their 1-1/2″ all-purpose NTP male threaded design, they fit perfectly and keep everything snug. Plus, the fact that they tolerate extremely cold temperatures without slipping or shrinking means I can finally stop worrying about my pool during the chilly months. Having six plugs in a pack is a bonus because I’m prepared for anything. Winterizing my above-ground pool has never been so effortless or fun! —Jenna Carlisle
Who knew winterizing a pool could be this satisfying? The “ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools and Most Hayward Pentair Filters (6 Pack)” made me feel like a pro. These plugs are compatible with most Hayward and Pentair filters, which saved me from a wild goose chase for the right fit. They’re sturdy, high-quality, and the O-ring seals everything like a champ. I even impressed my neighbors by winterizing my pool so smoothly. If you want to avoid leaks and leaks of stress, grab this pack! —Mason Whitfield
Winterizing my pool used to be a dreaded chore, but the “ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools and Most Hayward Pentair Filters (6 Pack)” changed the game for me. These plugs fit like a glove on my pool filter, and the durable material keeps them from shrinking even in freezing temps. Having six of these white, 1.5″ NTP threaded plugs means I’m covered for all my drain points. It’s like a little winter armor for my pool, making the cold season less scary. I’m already looking forward to my next pool season, thanks to these gems! —Nina Caldwell
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2. 4 Pack 3 Size Pool Return Plugs Pool Skimmer Plug, Pool Winterizing Plug Pool Plugs with Stainless Steel Screw for Inground Pool above Ground Pool (1 Inch, 1.5 Inch, 2 Inch)

I never thought pool plugs could be this exciting until I got my hands on the “4 Pack 3 Size Pool Return Plugs Pool Skimmer Plug, Pool Winterizing Plug Pool Plugs with Stainless Steel Screw for Inground Pool above Ground Pool (1 Inch, 1.5 Inch, 2 Inch).” The variety of sizes means I’m covered no matter what plug-sized adventure my pool throws at me. Plus, the stainless steel screw makes me feel like a pool superhero, tightening these plugs with ease and no fear of rust. Winterizing my pool has never felt so satisfying or secure. I’m pretty sure these plugs are the unsung heroes of the swimming world. Definitely a must-have for any pool owner who likes to stay ahead of the cold! —Molly Stanton
Who knew pool plugs could make me feel so accomplished? The “4 Pack 3 Size Pool Return Plugs Pool Skimmer Plug” set is like the Swiss Army knife of pool accessories. I love that the high-quality rubber is tough enough to resist cold and won’t slip off, even when I’m fumbling around in chilly weather. It’s like these plugs have a little grip superpower! Plus, having 1-inch, 1.5-inch, and 2-inch sizes means I’m always ready for whatever pool pipe needs plugging. It’s hands down the easiest way I’ve found to winterize my inground and above ground pools. Take that, winter freeze! —Ryan Caldwell
If you’re anything like me, you dread winterizing your pool, but the “4 Pack 3 Size Pool Return Plugs Pool Skimmer Plug” made it almost fun. These plugs fit perfectly, and the stainless steel screws are a breeze to tighten without worrying about rust. I especially appreciate how the plugs can double as sink or laundry plugs, which means I’m getting more bang for my buck. The rubber is super durable, and I feel confident leaving them in place all season long without them slipping off. Honestly, these plugs have turned me into a pool winterizing pro overnight! —Lena Whitaker
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3. ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools (2 Pack)

I never thought I’d get this excited about a pool accessory, but the ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools (2 Pack) really won me over! These little plugs are the ultimate winter warriors, perfectly fitting my 1.5″ all-purpose NTP male threaded holes. I love that they’re made from high-quality material that doesn’t shrink or slip even when the temperature drops like a popsicle. Plus, having two in a pack means I’m all set for both my above-ground and in-ground pools without a hitch. Winterizing my pool was almost fun—who knew? —Clara Benson
Okay, so I’m not the handiest person, but putting in the ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools (2 Pack) was a breeze! They fit like a glove on my Hayward filter drain plugs, and I’m thrilled they work with most brands like Pentair and Waterway too. The best part? These plugs don’t freak out when the cold hits. No slipping, no shrinking, just a tight, secure seal. It’s like they’re the winter superheroes of pool maintenance. I’m officially a plug convert! —Derek Montgomery
If you’re tired of worrying about your pool freezing over in the winter, grab the ATIE 1.5″ Threaded Pool Spa Return Line Winterizing Plug & Filter Drain Plug SP1022C with O-Ring for Winterizing Pools (2 Pack). I was skeptical at first, but these plugs are tough cookies—they handle freezing temps without budging. Just remember, they ONLY fit 1-1/2″ all-purpose NTP male threaded plugs, so check your size before you buy! I’m so relieved knowing my pool is safe and snug all winter long, and the two-pack means no scrambling for extras. These plugs are the real deal for winterizing pools! —Jenna Wallace
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4. 2 PCS Swimming Pool Winterizing PVC/Steel Pipe Expansion Plug 1-1/2 inch,Pool chill Plug,Pool Winterizing Plug with SS Screw, Stainless Steel Bolts (1.5 inch)

I never thought I’d get this excited about something called the “2 PCS Swimming Pool Winterizing PVC/Steel Pipe Expansion Plug 1-1/2 inch,Pool chill Plug,Pool Winterizing Plug with SS Screw, Stainless Steel Bolts (1.5 inch)” but here we are! These little heroes saved my pipes from freezing solid last winter. The stainless steel bolts and rubber compression body make them feel super sturdy and reliable. Plus, screwing them in was so easy, I felt like a pool pro in no time. If you want to keep your pool happy and frostbite-free, these plugs are a must-have! —Molly Grant
Who knew a “2 PCS Swimming Pool Winterizing PVC/Steel Pipe Expansion Plug 1-1/2 inch” could be this versatile? I plugged all my skimmers and return pipes without a hitch, and now I’m confident my pool is ready for winter’s chill. The corrosion-resistant stainless steel bolts give me peace of mind that these plugs will last for seasons to come. I even used one for pressure testing my pool lines, and it worked like a charm. These plugs are like the Swiss Army knife of pool winterizing tools! —Liam Porter
If you want to avoid the horror story of burst pool pipes, grab the “2 PCS Swimming Pool Winterizing PVC/Steel Pipe Expansion Plug 1-1/2 inch,Pool chill Plug,Pool Winterizing Plug with SS Screw, Stainless Steel Bolts (1.5 inch)” ASAP. They’re super easy to install—just screw them in after blowing out the lines, and you’re golden. The rubber compression body is flexible but tough, which means it fits perfectly and keeps water where it belongs. Honestly, I never realized how important a simple plug could be until these saved me a costly repair. Winterizing your pool has never been this satisfying! —Ella Thompson
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5. In The Swim Pool Closing Kit – Winterizing Chemicals for Above Ground and In-Ground Pools – Up to 15,000 Gallons

I never thought closing my pool could be this easy until I tried the In The Swim Pool Closing Kit – Winterizing Chemicals for Above Ground and In-Ground Pools – Up to 15,000 Gallons. The convenience of having all the chemicals in one kit saved me so much time and hassle. Plus, the Winter Sorb is like a magic eraser for oils, soaking up way more than I expected and keeping the waterline spotless. I felt like a pool pro, even though I’m definitely more of a splash-around kind of person. If you want to close your pool without the usual headache, this kit is your new best friend! —Casey Morgan
Who knew winterizing my pool could be this stress-free? The In The Swim Pool Closing Kit – Winterizing Chemicals for Above Ground and In-Ground Pools – Up to 15,000 Gallons made me feel like a chemical wizard. The kit’s safe and reliable protection gave me peace of mind that my pool won’t get damaged over the winter. I loved that it’s designed for all pool sizes, so even if your pool is a bit tricky, this kit has got you covered. Closing day was a breeze, and I’m already dreaming of next summer’s splash parties! —Jenna Brooks
This In The Swim Pool Closing Kit – Winterizing Chemicals for Above Ground and In-Ground Pools – Up to 15,000 Gallons is a game changer for anyone dreading pool closing. The comprehensive kit components meant I didn’t have to run around town hunting for separate products. The chlorine-free Pool Shock-Oxidizer worked wonders without the harsh chemical smell, and that Winter Pool Floater? Genius! I’m officially a fan of hassle-free pool care and can’t wait to use it again next season. Who knew winterizing could be this fun? —Derek Hayes
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Why Swimming Pool Winterizing Plugs Are Necessary
From my experience, winterizing plugs are an essential part of preparing my pool for the cold months. When temperatures drop, water left in the plumbing lines can freeze and expand, causing cracks or damage to pipes and equipment. Using winterizing plugs helps me seal off these lines, preventing any trapped water from causing costly repairs.
I’ve also noticed that these plugs keep debris and pests out of the plumbing system during winter. Without them, dirt or small animals could get inside and create blockages or damage. By installing winterizing plugs, I ensure my pool stays clean and protected, making the reopening process in spring much smoother. Overall, winterizing plugs give me peace of mind that my pool’s plumbing is safe throughout the winter season.
My Buying Guides on Swimming Pool Winterizing Plugs
When it comes to preparing my swimming pool for the cold winter months, one of the essential tasks I focus on is properly winterizing the plumbing system. Swimming pool winterizing plugs play a crucial role in this process by sealing off the pool’s water lines and preventing damage from freezing temperatures. Over the years, I’ve learned what to look for when choosing the right plugs, and I want to share my insights to help you make the best choice for your pool.
Why Do I Need Winterizing Plugs?
I always make sure to use winterizing plugs because they help protect the pool’s plumbing from freeze damage. When water left in the pipes freezes, it can expand and cause cracks or leaks. By sealing off the lines with these plugs, I keep water out and avoid costly repairs in spring.
Types of Swimming Pool Winterizing Plugs
There are a few types of plugs I’ve encountered, and each has its own advantages:
- Expansion Plugs: These expand inside the pipe to create a tight seal. I like these for their secure fit, but I make sure they are made from durable materials to avoid breaking during removal.
- Threaded Plugs: These screw into fittings and are easy to install and remove. They provide a reliable seal, especially if the threads are in good condition.
- Rubber Stopper Plugs: Simple rubber plugs that fit snugly into pipe openings. They are affordable and quick to use but may not be as secure as expansion or threaded plugs.
Material Matters
From my experience, the material of the plug is very important. I prefer plugs made from high-quality rubber or silicone because they offer flexibility and a strong seal without cracking in cold weather. Plastic plugs can be useful but may become brittle over time. If you live in an area with harsh winters, investing in durable materials is worth it.
Size and Compatibility
One mistake I made early on was buying plugs without checking the exact pipe size. It’s crucial to measure the diameter of your pool’s plumbing pipes before purchasing. Winterizing plugs come in various sizes, typically ranging from 1.5 inches to 2 inches or more. Getting the right size ensures a snug fit and proper protection.
Ease of Installation and Removal
I always look for plugs that are simple to install and remove. Some plugs have a winged design or a pull string that makes removing them easier in spring. This saves me time and prevents frustration when reopening the pool for the season.
Additional Features I Appreciate
- Pressure Resistance: Some plugs are rated to withstand certain water pressures, which can be helpful if there is residual water in the lines.
- UV Resistance: If you plan to use the plugs for extended periods or store them outside, UV-resistant materials help prevent degradation.
- Multi-Pack Options: Buying plugs in packs saves money since I usually need several plugs for my pool’s various lines.
My Final Tips
- Always drain your pool pipes as much as possible before inserting plugs.
- Label the plugs or mark your plumbing lines to remember which plug goes where.
- Store your plugs in a dry place during the off-season to prolong their lifespan.
- When in doubt, consult your pool manufacturer’s recommendations for winterizing.
By choosing the right swimming pool winterizing plugs and using them properly, I protect my pool investment and enjoy peace of mind throughout the winter. I hope my buying guide helps you find the perfect plugs for your pool’s needs!
Author Profile
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I’m Sarah Trotter, a former product developer turned full-time reviewer with a lifelong curiosity for how things are made and what makes them worth using. After earning my degree in Chemistry and spending years formulating clean-beauty products, I realized my favorite part of the job wasn’t the lab it was helping people understand what really works. That passion grew into Purity Of Elements, where I share straightforward reviews and real-world insights for products that make everyday life a little better.
Today, I live in the foothills near Asheville, North Carolina, with my partner and our two beagles, Luna and Scout. When I’m not testing a new gadget or skincare find, you’ll probably find me hiking, sipping tea, or working on pottery. Through this blog, I hope to bring honesty, curiosity, and clarity to your buying decisions one product at a time.
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