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Availability:
Only 4 left in stock, order soon!
Arrives
Wednesday, Sep 2
Size: 18' (Round)
Features
- Heavy-Duty Winter Protection: This heavy-duty pool cover is built from 7x7 scrim woven polyethylene with reinforced, heat-sealed seams; its dense, tear-resistant scrim handles harsh off-season weather
- Stays Secure in Wind and Snow: The aluminum grommets every 2 ft and a 4-ft overlap hold this solid cover firmly over the round above-ground pool, standing up to wind, rain, and snow
- Extends Cover Life, Blocks Sunlight: Built with heat-sealed seams, this above ground pool cover ensures a watertight bond, blocking leaves, debris and rain while extending cover life; the black underside blocks sunlight to help inhibit dirt buildup
- Minimizes Water Evaporation: This solid construction of this pool cover for above ground pool helps retain water by limiting exposure to air, reducing evaporation over winter
- Simple Cable-and-Winch Installation: Thread the included vinyl-coated cable through the aluminum grommets, then tighten the metal winch of the round above ground pool cover for a secure, wind-resistant fit
- Easy Centering and Fit: This pool tarp for above ground pool is sized for 18-ft round above-ground pools with an extra 4-ft overlap for easy centering during installation
- Proper Handling and Care: Simply clear the buildup from the pool edge with a soft-bristle broom after a heavy snow, or use a cover pump to remove standing water that collects on top of the pool winter cover after storms
- Hardware Included: This heavy duty winter pool cover is sized for 18-ft round above-ground pools; securing hardware such as the cable and winch are included
- Reliable Quality from Blue Wave: Backed by an 8-year limited warranty (full coverage in year 1, prorated coverage in years 2 through 8), U.S.-based customer support, and over 35 years of pool industry experience
Description
The Dirt Defender Bronze grade cover has the strength and durability of covers costing twice as much. Rugged polyethylene scrim and coating means this cover can withstand winter’s worst. Dirt Defender covers are U.V. protected so they will last for years in direct sunlight. The cover’s black underside retards algae growth and heat sealed seams means a crystal clear pool next spring. The big 4 foot overlap ensures a proper fit for above ground pools unlike covers with 3 foot overlaps. Dirt Defender covers are held secure with a heavy duty cable and winch tightener that is anchored by rip proof metal grommets. Backed by an 8 year warranty (1 year full rated). This Dirt Defender cover comes in a dark navy blue with a black underside. The cover is made to rest on the water in order to reduce stress on the pool wall. should hold it in place to protect the cover against the elements.
Size: 18' (Round)
Color: Navy Blue
Material: Polyethylene (PE)
Brand: Blue Wave
Product Dimensions: 216"L x 216"W
Brand Name: Blue Wave
Model Name: BWC704 8-Year 18-ft Round Above Ground Pool Winter Cover
Model Number: BWC704
Global Trade Identification Number: 19
UPC: 672875303519
Manufacturer Warranty Description: 8-year limited warranty
Item Type Name: POOL_COVER
Manufacturer: Blue Wave Products
Manufacturer Part Number: BWC704
Unit Count: 1 Count
Installation Type: Manual
Color: Navy Blue
Product Style: Cover
Shape: Round
Pattern: Solid
Theme: Garden, Patio, Pool, Pool Cover
Size: 18' (Round)
Item Dimensions L x W: 216"L x 216"W
Material Type: Polyethylene (PE)
Product Care Instructions: Clean with a garden hose, dry before storing, and store in a dry place during off-seasons.
Additional Features: Wear Resistant
Closure Type: Drawstring
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, Sep 2
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Size: 24' (Round)
Junk after 2 use cover rots out.
Reviewed in the United States on May 25, 2026 by Debra pac
Size: 21' (Round)
I have a 21' above ground pool so I ordered the 21' cover. The cover is actually 25' in diameter so it fits my pool perfectly with plenty of overhang even with an air pillow underneath it. Be aware that you get what you pay for. This cover is made from run-of-the-mill nylon/polyester mesh fabric with a polyethlene coating (the same as those cheap blue poly tarps from the hardware store). I seriously doubt that this tarp will last more than one or two seasons (my previous cover lasted one season and it was made of the same material). The "8-year" warranty is very misleading. Year 1 is 100% covered, year 2 is 50% off retail, year 3 is 40% off retail, year 4 is 30% off retail, year 5 is 20% off retail, year 6 is 15% off retail, year 7 is 10% off retail, and year 8 is 5% off retail. But, again, this is an inexpensive cover and should get the job done for a season or two. It fits perfectly and I'm happy with my purchase. UPDATE 10/31/2014 ================= The cover worked well for one winter season. We removed the cover in the Spring, hosed it off, and stored it in our crawl space until this Autumn. We closed down our pool and re-installed the cover about a month ago. We noticed that there was always a layer of water on top of the cover even after we pumped it dry. We just figured it was rain or dew buildup, but after a dry spell there was still a lot of water on top of the cover. We ended up buying another (same) cover and spent a great deal of time siphoning off the water and removing the old cover to install the new cover. While doing this we noticed lots of tiny holes in the old cover which is how the water was seeping on top. We got the new cover installed and everything is good now. Bottom line: the cover that we purchased a year ago only lasted one season. We're now on our second cover and we expect it to only last one season as well. This cover is pretty inexpensive so you get what you pay for. UPDATE: 09/19/2016 ===================================== I've now gone through THREE of these covers. The first two each lasted about two seasons (which, honestly, is what I was expecting). But the third cover didn't even make it through one season. A few months after covering our pool, the weave began to separate and water would leak up through the cover. Very poor quaity in my opinion. Third time's the charm, we will not order this over again.
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Reviewed in the United States on September 28, 2013 by Ducrab
Size: 28' (Round)
I bought this knowing that I would only be using this for the winter after all my reviews of other winter covers. This was easy to put on and easy to cover the pool. My pool is a 26 which is hard to find so I had to go with the 28 which is super long. The first wind the plastic went wrap we put on complete came off so that I tossed. I put sand bags on the top to keep it down however this went to the middle of the tarp and we’re under water. So I took them out and now I have them hanging on the outside on the cable which is working great! Mind you I have only had this closed since the start of October and I just pumped off about several inches of rain water. But thinking this is working out great so far now that I have perfected this part finally this week. More to come as the winter progresses and I’ll see if I decide to do this again next year
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Reviewed in the United States on October 29, 2020 by Stephanie Smallwood
Size: 18' (Round)
I ordered this cover for my new 18’ x 52” round above ground pool and used it when we closed our pool in early November 2022. It is my first time ever using a solid above ground pool cover, so I didn’t know what to expect. I am actually surprised that it has held up so far (knock on wood) during some of these crazy winds and storms! We used the red “string”/wire/whatever you wanna call it and ratchet that it came with and were able to get it to stay put so far. No extra cables or weights or anything to keep it held down. I bought a small pool cover pump to pump water off of it when we get heavy rains. A good tip is to leave SOME water around the cover (especially if you’re using a pillow!) to keep it from parachuting during heavy winds (although it still will a little bit…especially during really high winds). Use the winch to tie as tight as you can and make sure the cover is secure and you won’t have to worry about it blowing off. I am actually shocked it has stayed on! Keeping up with pumping water off is kind of annoying but I think it will be worth it not having to deal with a green swamp like we would with a mesh cover. Using a pillow in the center makes pumping water off a LOT easier. Do not drain too much water because this cover is meant to sit ON TOP OF the water! Do not pull it tight! We only drained about 3-4 inches below the skimmer and returns. The lower you drain the water at closing, the more stress you’re putting on your pool’s walls when the heavy rain and snow comes! It is a solid cover so it is NOT necessary to drain so much water like you would with a mesh one. Quality is mid at best, I suppose. It is pretty thin and flimsy but slightly better than just a regular old “tarp”. I plan on only using this for this season since it was cheap and buying another one for next closing. Overall, I recommend this cover if you can find it for cheap and don’t have high expectations. Forget about the 8 year “warranty”. This will last 2 seasons at best — maybe 3 if you don’t get a lot of heavy winds or rains. It is pretty thin and looks like it could rip easily. It has stayed on and has exceeded my expectations thus far. I will update this review when I take the cover off in late March/early April and let y’all know how it did! So far, so good! SPRING UPDATE!! Cover lasted all winter up until opening in early April! Never blew off, never ripped, excellent value! I will be buying another one when I close this season since the price is so good. Buy it!
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Reviewed in the United States on January 12, 2023 by Kate
Size: 24' (Round)
I’ve been using the Blue Wave 8-Year 24-ft round winter cover for my above-ground pool, and it’s been a dependable option for getting through harsh winters without worrying about damage or cleanup in the spring. The first thing I noticed is how solid the material feels. It’s made from woven polyethylene with a reinforced scrim, so it doesn’t feel flimsy at all—it’s built to handle snow, wind, and debris without tearing easily. The heat-sealed seams add to that durability, helping it hold up through the entire season . The 4-foot overlap is a big advantage. It gives you plenty of extra material to secure the cover tightly, and the grommets spaced around the edge make it easy to lock everything down with the included cable and winch. Once it’s on, it stays put—even during rough weather . Another standout feature is the solid design with the black underside. It does a great job blocking sunlight, which helps reduce algae growth and keeps the pool water cleaner by spring. It also keeps out leaves, dirt, and other debris, so opening the pool later is much less of a hassle . Installation is pretty straightforward, though like most pool covers, it’s easier with two people just to get everything centered evenly. Once in place, it requires minimal adjustment. Overall, this is a great value winter cover. It’s not the absolute heaviest-duty option on the market, but it strikes a really nice balance between durability, protection, and price. If you want a reliable cover that will protect your pool through winter without overspending, this one gets the job done very well.
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Reviewed in the United States on April 25, 2026 by Kyle
Size: 18' (Round)
We got this pool cover in May when we put our pool up. There are definitely some pros and cons for this bad boy. You can’t beat the price! The cord and tensioner were extremely easy to use. The fit was great! But don’t expect to get more than one summer out of it. It’s VERY thin, so by the end of summer despite not having any tears or holes, rain water was still getting through into the pool. While the tensioner did work easily, it didn’t seem to ever get tight enough to withstand higher gusts of wind (I’m not talking thunderstorm- I’m talking a typical windy day). We had to go out and readjust and couldn’t get it tight enough, so we had to buy clamps to clamp it to the poles on the pool. Personally, next year we plan to spend a bit more to get a higher quality cover. It did the job for most of the time we had it, but definitely wouldn’t last years. Just to give an idea, we are in Indiana where it may hit 90 a handful of times but average temps are in the 80s and humidity isn’t bad.
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Reviewed in the United States on October 13, 2024 by Katie
Size: 24' (Round)
Held up all winter and appears I will be able to use again this year. So far I’m happy.
Reviewed in the United States on August 23, 2026 by Cindy K.
Size: 28' (Round)
Can I rate this a ZERO?? I bought this in 2024. It has an EIGHT YEAR WARRANTY. I put it in my pool in September, and it was dry rotted and shredded by April. I contacted Blue Wave and they “pro rated” me a new one in the fall of 2025; I had to pay $30 for the replacement. I put it on in September again and was absolutely disintegrating by April again. I called Blue Wave and they said they’d send me another one for another reduced price. Absolutely not; I asked for a refund. The product is complete trash. They said I would have to contact Amazon. I contacted Amazon (after 20 minutes of trying to figure out how to get a customer service call) and the Amazon representative said I had to contact the seller. He told me there was nothing Amazon could do. What an absolute joke. Do NOT buy this cover. Blue Wave and Amazon are all too happy to take your money but will not stand behind this complete garbage of a product.
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Reviewed in the United States on August 19, 2026 by Michelle Adams