Advertising Disclosure

5 Best Shell Blocks - Black Friday 2025

Last Updated - 2025/11/21

1
Best Choice

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Native Shoes

Native Shoes Unisex Jefferson Sugarlite Block, Shell White/Shell White/Dazzle Maria Celery Block, 12 Women/10 Men

Native Shoes

CA$100.64

More Details
Main highlights
- VEGAN-FRIENDLY CONSTRUCTION: These fashion sneakers are made with vegan-friendly materials. Native Shoes has partnered with Zappos for Good to collect your well-loved Native Shoes and recycle them into community playground materials. The round-toe cap provides you with a cushioned fit for comfort. Their synthetic lining is soft on your skin, making them ideal to wear for long hours. Their measurements were taken using size Men's 9, Women's 11, and width Medium so they may vary by size.
- SYNTHETIC OUTSOLE & INSOLE: Featuring all-over perforations, these Jefferson Sugarlite Block shoes help control temperature and allow airflow around the feet so that they stay cool and dry. They come with a brand logo on the tongue and heel. The synthetic outsole and insole of these unisex slip-on sneakers make them a durable choice. Their textured outsole offers a firm grip on uneven or slippery surfaces.
- SUMMER SHOES FOR WOMEN & MEN: Get the best comfort and a cool style wearing these Native Jefferson Sugarlite Block shoes. The lightweight and comfy construction will take your comfort to the next level. Their slip-on style makes for easy on and off. Whether it’s the perforated design or the durable construction, each feature is carefully designed to offer the wearer superior comfort and performance.
- MULTIPLE COLORS & SIZES: These slip-on shoes for women and men come in a UV City Celery Block print. For men, they are available in sizes 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, and 13 whereas, for women, they come in sizes 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, and 15. Choose from its wide range of sizes to find the best one for you. Stay comfortable wherever you go wearing these Native Jefferson Sugarlite Block shoes.
- IDEAL FOR EVERYDAY COMFORT: A perfect addition to your summer footwear collection, these unisex shoes are designed to keep your feet breathable and comfortable all day. Whether you’re dressing up for a casual look or going out for a stroll, these imported water shoes for women and men are a great choice. Each shoe weighs 7 oz. The slip-on style and durable construction make them ideal for everyday wear.
CA$100.64
2

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

SimPure

SimPure 4.5" x 10" Whole House Water Filter Cartridges 5 Micron Coconut Shell Carbon Block Replacement for Housing and Systems DB10P, DB10C, FC15B, GE GXWH40L, GXWH35F, BB-10B, FXHTC, WGB21B, 3-Pack

SimPure

CA$99.99

More Details
Main highlights
- [Wide Compatibility] Fits most of the big 4.5x10-inch blue filter housings (approx. outer diameter 7″ at the top) and 10-inch whole house water systems including but not limited to: SimPure DB10, DB10P, GE GXWH35F, GXWH40L, HB18B, WGB21B, American Plumber W15-PR, W10-PR, AP801T, AP801B, HF45 series, etc.
- [Universal Replacement Filter Cartridge] The standard size makes our CTO filter an ideal replacement for sediment and carbon cartridges including FC15B, DuPont WFHDC8001, Watts MAXETW-FF975 WCBFF975, ClearChoice 84629, Liquatec CB-450-975-05, CTO2-HD10, Pelican CB-BB-10, WDGD-5005, AP817, PP10BB-CC, 155548-43 EP-BB EPM-BB CBC-BB, etc.
- [Reliable Material] This big carbon filter cartridge is made of premium coconut shell charcoal block, wrapped in a food-grade polypropylene non-woven fabric to achieve fine water filtration while avoiding carbon particles leaking into the water. Tested by an independent third-party to meet NSF 42 Standards for material.
- [Low Pressure-Drop] Compared to the 1-micron filters, the 5-micron pore size helps prevent the cartridge from clogging before its adsorption capability is exhausted, maximizing the utilization of the carbon while maintaining a lower pressure drop.
- [High Capacity, Long Lasting] Our carbon filter can filter up to 15,000 gallons of water depending on usage and local water quality. Suggest replacing it every 3-6 months for the average household for optimal performance.
- [5 Micron Fine Filtration] Optimized to perform as both a sediment and carbon block filter, it filters out contaminants down to 5 microns, removes undesirable colors, bad tastes, the smell, and up to 98% of chlorine from well water and municipal water, significantly improving water quality for the whole house.
CA$99.99
3
Best Value

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

PUREPLUS

PUREPLUS Coconut Shell Water Filter Cartridge | Activated Carbon Block CTO | Universal Whole House 5 Micron 10 inch Cartridge | Compatible with WFHDC8001, CB-BB-10, EPM, EP-BB, 3Pack

PUREPLUS

CA$84.99

More Details
Main highlights
- Heavy Metal Removal: Heavy metals pose significant health risks when present in drinking water. The activated carbon in our cartridge effectively adsorbs and binds to heavy metal ions, while the KDF media employs a reduction-oxidation process to neutralize and remove these contaminants from your water supply, providing you with cleaner and safer drinking water.
- Enhanced Filtration Lifespan: The combination of activated carbon and KDF media ensures consistent and reliable performance over time, allowing you to enjoy the benefits of clean and purified water for longer durations before cartridge replacement is necessary.
- Comprehensive Water Purification: The advanced activated carbon and KDF cartridge offers comprehensive water purification. In addition to heavy metal removal benefits, it efficiently reduces chlorine, unpleasant tastes, odors, and other common water impurities, resulting in a refreshing and clean drinking water experience.
- Compatible Models: Fits standard 10" x 4.5" heavy-duty filter housings, compatible with DuPont WFHDC8001, Watts MAXETW-FF975, ClearChoice 84629, Liquatec CB-450-975-05, MATRIKX-CTO2-HD10, Pelican CB-BB-10, and 155548-43 EP-BB. Works with most systems using 10" x 4.5" filters.
- Activated Carbon and KDF Blend: Our Advanced Activated Carbon and KDF Stick Cartridge is crafted using a carefully balanced mixture of activated carbon and KDF. This combination maximizes the filtration efficiency and ensures optimal removal of heavy metals, including lead, mercury, arsenic, and more.
CA$84.99
4

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Zoo Med

(10 Pack) Zoo Med Dr.Turtle Slow Release Calcium Block Provides Required Calcium

Zoo Med

CA$32.06

More Details
Main highlights
- Turtles require UVB lighting and heat for proper shell growth and development
- Turtles require UVB lighting and heat for proper shell growth and development
- To use, simply place the Dr. Turtle Block in your turtles water supply
- Pack of 10
- Dr Turtle is a slow-release calcium block
CA$32.06
5

✖
Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Zoo Med

Zoo Med Dr.Turtle Slow Release Calcium Block Provides Required Calcium - 5 Pack

Zoo Med

CA$19.59

More Details
Main highlights
- Provides Calcium
- Easy To Administer
- Conditions Water
CA$19.59

5 Best Shell Blocks - Black Friday 2025

Native Shoes Unisex Jefferson Sugarlite Block, Shell White/Shell White/Dazzle Maria Celery Block, 12 Women/10 Men

SimPure 4.5" x 10" Whole House Water Filter Cartridges 5 Micron Coconut Shell Carbon Block Replacement for Housing and Systems DB10P, DB10C, FC15B, GE GXWH40L, GXWH35F, BB-10B, FXHTC, WGB21B, 3-Pack

PUREPLUS Coconut Shell Water Filter Cartridge | Activated Carbon Block CTO | Universal Whole House 5 Micron 10 inch Cartridge | Compatible with WFHDC8001, CB-BB-10, EPM, EP-BB, 3Pack

(10 Pack) Zoo Med Dr.Turtle Slow Release Calcium Block Provides Required Calcium

Zoo Med Dr.Turtle Slow Release Calcium Block Provides Required Calcium - 5 Pack

You may also like...

2 Standard Coconut Shell Block Carbon & 2 Four Layers of Filtration Polypropylene Sediment 5 Micron 2.5"x 10" Water Filter Cartridges Universal replacement for Reverse Osmosis & Standard 10” Housing

Coconut Shell CTO, Cyst Carbon Block Drinking Water Filter, 2.5 x 10, 0.5 micron

Terminal Block, 600V 60A PC Shell 0. 5 to 10mm² Wire Terminals Terminal Strip with Large Current for Bridge, Lighting (4 Position (604))

Natural Blank Smooth Wooden Cubes - 2-3/4 Inch - Unfinished Craft Wood Square Blocks for Photo Blocks and Carving Art Crafts & DIY Projects Supplies

10x 4.5 inch Whole House Carbon Water Filter 5-Micron | SimPure Carbon Block Replacement Filter Cartridges Premium Coconut Shell Activated Carbon| Fits DB10P, GE GXWH40L, GXWH35F, FXHTC, FC15B (2Pack)

PUREPLUS 10" x 4.5" Whole Home CTO Water Filter Cartridges5 Micron Coconut Shell Carbon Block, NSF/ANSI 42 Certified

Stackable Toys - Eggshell Stackable Sensory Toys, Soft Baby Blocks, Sensory Development Toy, Strong and Easy to Grip, Colorful Educational Toy for and Babies | Perfect for Early Learning

IPW Industries Inc. Coconut Shell Water Filter Cartridge | Activated Carbon Block CTO | Universal 5 Micron 10 inch Cartridge | Compatible with DWC30001, WFPFC8002, FXWTC, WHEF-WHWC, WHKF-WHWC (4-Pack)

Omnipure OMB934-5 9-3/4 Coconut Shell Carbon 5mic Block Filter

SENKEN 11-Piece Damascus Knife Block Set with Abalone Shell Handle - Umi Collection Japanese Chef Knife Set - 67-Layer Japanese VG10 Steel, Chef Knife, Paring Knife, 4 Matching Steak Knives & More

Sign up and get exclusive special deals