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Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
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Description
LANDEN NanshaPure Natural Sand 11lbs (3L) for Reef or Hardwater Aquarium, Premium Aragonite Cosmetic Sand for Saltwater and Marine Aquascape, Substrate for Cichlid, Harlequin Shrimp and Hermit CrabAbout This Stabilize Water QualityGreat helps stabilize the water body's pH and KH value. Unparalleled buffering capacity for water quality. LANDEN NanshaPure Sand is a natural filter material from the deep sea, and it is the ideal breeding ground and comfortable reproduction environment for nitrifying bacteria. Natural Aquarium Filter MediaLANDEN NanshaPure sand is a natural aquarium bottom sand filter. Rich pores and large surface area in the grain
About This
- 【Stabilize Water Quality】Great helps stabilize the water body's pH and KH value. Unparalleled buffering capacity for water quality. LANDEN NanshaPure Sand is a natural filter material from the deep sea, and it is the ideal breeding ground and comfortable reproduction environment for nitrifying bacteria.
- 【Natural Aquarium Filter Media】LANDEN NanshaPure sand is a natural aquarium bottom sand filter. Rich pores and large surface area in the grain structure, it can effectively adsorb impurities such as chlorine, nitrate, and nitrite, filter the residue, remove the odor in the water, achieve the effect of purifying the water in many aspects,
- 【Pure Natural and Safe to Use】Sourced from the pollution-free tropical islands, refined from a mineral variety of calcium carbonate called aragonite, mainly sourced from skeleton marine creatures like shells and coral bones. The final product is phosphate-free and with no chemical treatment such as bleaching. No artificial coloring or preservatives, safe and friendly to aquatic life.
- 【Multiple Scenery Usage】Excellent sand for aquascaping. It has a mild and clean natural white color that can match your aquascape form and accent other colors in the water body. It also can simulate the white beach and seabed in nature to create a pure underwater or beach scenery. Rich in crushed coral, it is suitable for creatures that love hard water bodies, such as cichlids, Harlequin shrimp, hermit crabs, etc., as well as saltwater aquarium creatures in general.
- 【Specifications】 Weight: Approx. 5kg/bag (11 pounds, 3.2L). Grain size: 0.3-1.2mm. Main Ingredients: Natural Coral Bone (calcium carbonate).
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
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
4.6 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
I loved
Super good, it really keeps the cold well
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Perfect Buy for you Hardworking Man/Women
I’ve bought my husband 3 of these already for work we love them easy to clean super durable perfect for his job. Keeps his coffee nice and hot and his chilled drinks nice and cool! We love it every chance we get we buy another one.
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Reviewed in the United States on January 11, 2026
★★★★★ 4
Doesn’t maintain hot too long.
I love this cup because the material is good for heavy duty jobs like mine. I took off one star because it does keep hot but not for super long, it lasts hot for about 2-3 hours. Other than that it’s easy to wash and the magnet that comes on the cup is super strong which comes in handy for not loosing it. It magnetized on to the cup.
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Reviewed in the United States on October 28, 2025
★★★★★ 5
It's the best.
I'm picky on my coffee cups. Klien though has made a great cup for ones like me who work construction. This tumbler not only keeps your coffee hot, but is tough as hell. I can't count how many times it's fallen, dropped, or accidently kicked and still works like new. The rubber bottom and sides grip great. The magnet is strong and helps with tipping over, or possibly dropping. The locking lid also helps with spills.
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Reviewed in the United States on August 4, 2024
★★★★★ 5
Best tumbler I've ever owned
I use this tumbler as a travel cup for my coffee primarily. I have also drank cold beverages out of it. Both are satisfying experiences. Why does this product appeal to me so much that I would buy one, recieve it and then buy another? Because they got it RIGHT.
They didn't waste time trying to put a handle on it that would be too big for some hands and too small for others. Instead, they put a grip surface on it that is comfortable and secure with or without gloves. A cup for all seasons and working men and women of America.
The lid screws on, and the drink spout cover snaps in place open and closed. Even better, it doesn't rub on your nose when you drink out of it. Stainless steel inside and out, except for the thick lid and grip surface. Keeps coffee hot way longer than I'm used to, but don't know for sure how long because I don't waste much time drinking it. I have one for my truck and one for my Jeep so I'll never be without it. Yeah. Love it that much. I don't use the provided rare earth magnets for the cup, but I put them to good use elsewhere. I can see where they would come in handy in the construction or other trades. I use the cups on my commute, around the house, and while enjoying the outdoors.
Keep up the good work, people!
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Reviewed in the United States on July 26, 2022