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Description
2.5"x40" | 700 GPD | 99.4% Salt Rejection | Watermaker | FilmTec Seawater MembraneDOW FILMTEC SW30 2540 Seawater RO Elements for Watermakers and Marine Systems DOW FILMTEC SW30 2540 elements have one of the highest flow rates available to meet the water demands of both sea based and land based desalinators. Commonly used in on board Watermakers to create drinking water from seawater for yachts, boats, and cruise ships, DOW FILMTEC marine SWRO elements offer the highest productivity while maintaining excellent salt rejection. DOW
DOW FILMTEC SW30-2540 elements have one of the highest flow rates available to meet the water demands of both sea-based and land-based desalinators. Commonly used in on-board Watermakers to create drinking water from seawater for yachts, boats, and cruise ships, DOW FILMTEC marine SWRO elements offer the highest productivity while maintaining excellent salt rejection. DOW FILMTEC SW30 elements may also be operated at lower pressure to reduce pump size, cost, and operating expenses DOW FILMTEC SW30-2540 is FDA – 21 CFR 177.2550; Food and Drug Administration Compliant.
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Specifications for SW30-2540
Permeate flow and salt rejection based: 32,000 ppm NaCl feed stream, 77°F, 8% recovery, 800 psig. Operating Limits for SW30-2540
*Maximum temperature for continuous operation above pH 10 is 95°F |
Related Products for use with SW30-2540 Seawater Elements
| PV2540A1200E | 2.5x40 Fiberglass Pressure Vessel Membrane Housing for Seawater RO Membranes (Water Maker Pressure Vessel) |
| C-C2510-A11 | Membrane Cleaning Cartridge with Acid Cleaner to Remove Scale Buildup and Prolong Membrane Life |
| C-C2510-A22 | Membrane Cleaning Cartridge with Alkaline Cleaner to Remove Organics and Prolong Membrane Life |
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C-C2510-A88 |
Membrane Preservative Cartridge for Preserving the System and Membrane During Extended Periods of Non-Operation. |
| 655139-03 | Oil Adsorbing Filter Cartridge - Oil-Water Separator Replacement Cartridge, 20" Big Blue Pentair Pentek Filter |
| H-F10100CF | Plankton Filter - 10" Standard 100 Micron Spun Polypropylene Replacement Filter Cartridge |
Benefits of DOW FilmTec Marine RO Membranes:
- Convert seawater into drinking water on yachts, boats, cruise ships, off-shore platforms, and resorts
- High flux reduces energy use or pressure required
- Good rejection results in good quality water
- FilmTec performance and quality
Common Applications for FilmTec SW30-2540 Seawater RO Elements:
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Physical Dimensions of DOW FilmTec SW30-2540 SWRO
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SW30-2540 Fits nominal 2.5-Inch ID pressure vessels.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 5 reviews
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Product Reviews
★★★★★ 5
Great Results
Color: White, Size: Women 9-13, Color: White, Size: Women 9-13
The Jfrhuds Moisturizing Silicone Socks work very well. I ordered the white 2-pack in the large size 9-13, and each came packaged in an individual zipper bag. I wear a women's size 9-9.5, and they fit me perfectly. I can see how they have enough stretch to fit larger sizes easily and comfortably.
These socks are a lot thicker and heavier than I expected. They are rubbery with non-slip treads on the bottom. As soon as I put them on my feet, they actually felt very moisturizing and almost wet, even though I had not put moisturizer on my feet first. Plus my feet felt cold at first. It was different than I expected, I had never worn this type of sock before, and it was an interesting sensation.
They work great, and I am sold on the benefits of these socks. I wear them to sleep at night and dodn't walk very far in them. They seem pretty sturdy, but I don't want to push it and will just use them for their intended purpose. My feet weren't super dry or cracked, but the socks really helped revive them and make them super soft again. I love them; they are great for self-care and would also make a wonderful gift.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 1
Not durable
Color: Nude, Size: Women 9-13
Only used two of them so far. One sock lasted nearly 3 wears. The other broke before I could finish wearing it the second time. Basically useless junk.
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Reviewed in the United States on April 2, 2026
★★★★★ 4
Thick Silicone Moisturizing Socks
Color: Nude, Size: Women 9-13, Color: Nude, Size: Women 9-13
★★★★☆ Thick Silicone Moisturizing Socks
I ordered these silicone moisturizing socks to try for dry heels. Unlike typical fabric spa socks, these are made entirely of soft silicone and are noticeably thicker and very stretchy.
When I first took them out of the package there was a visible fold line in the silicone. It appears to be from how they were folded in the packaging rather than a defect in the material. The silicone itself feels durable and flexible.
The design works like a full silicone sleeve that traps moisturizer against your skin. I applied Aquaphor first and then slid these on so the moisture stays in contact with the skin longer. One thing I noticed right away is that the silicone feels cool when you first put them on, which is actually pretty comfortable.
The bottoms have a zig-zag textured pattern that gives some grip if you need to stand briefly, though these seem better for relaxing while moisturizer absorbs rather than walking around much.
The ankle opening is the tightest part of the sock. It stretches, but it’s noticeably snug compared to the rest of the silicone, which helps keep them from sliding off.
For sizing reference, I wear a women’s 7.5–8 shoe and the size Large fits comfortably. There’s plenty of stretch and I can wiggle my toes easily, so they should accommodate larger feet as well.
They’re also easy to clean. After using them you can simply wash them with soap and water and let them dry completely before storing or using them again.
Overall these appear well made with thick silicone and plenty of stretch. If you use moisturizing socks or heel treatments, these work well for keeping lotion in place while your feet absorb it.
Since this set comes with two pairs for about $10, the price seems pretty reasonable for something reusable like this.
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Reviewed in the United States on March 6, 2026
★★★★★ 5
Shimmer, Shine, and All the Glitz ✨💖
Color: Diamond White
I am a girl who loves to shimmer, shine, glitz, and glow, so this Boko Highlighter Powder Spray was an absolute delight to try! It adds a gorgeous sparkling finish that really bedazzles my skin, making me feel extra glamorous whether I’m going out or just playing with my makeup.
The spray is easy to apply and gives a smooth, even shimmer without feeling gritty or heavy. I’ve been using it for daily wear, as well as for little festival vibes and fun nights out, and it really catches the light beautifully.
If you love sparkle and want to elevate your glow game, this is such a fun, high-quality product to add to your collection! 🌟💎✨
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Reviewed in the United States on March 12, 2026
★★★★★ 4
Classic old-fashioned presentation, versatile uses
Color: Diamond White, Color: Diamond White
I loved the presentation of this glitter in an old-fashioned atomizer perfume bottle with a pink squeeze puff. Because glitter powder is not prone to evaporation, an atomizer is actually a great way to package powder.
I tried this product with the atomizer and without. Honestly, I was just looking for some sparkles on my cheekbones and a glitter streak in my hair for a New Years Party. The instructions advised that for a targeted glitter application, spray the glitter on your hand and apply it with a brush. I found that this way left too much glitter behind on my hand.
Instead, I shook some glitter onto a piece of paper and mixed some with Aquaphor for application on my face. This helped the glitter adhere to my skin and lasted for hours. I mixed some glitter into hair gel and applied it to a streak in my hair. The larger pieces of silver glitter really sparkled this way.
Overall, this packaging looks great and would be functional if you were looking for an all-over application. Otherwise, just using a simple bottle works as well.
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Reviewed in the United States on December 31, 2025