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Ships within 48 hours · Estimated delivery Oct 2 - Oct 7
For Your Every Summer RSVP, with Code: SUMMER15
Description
C-STONE-Ceramic red bacterial ring-1.5kg/bagRed Bacteria House 1. 5kg The Red Bacteria House is a high quality filtration material sintered at 1800 , ensuring it is rich in trace mineral elements. This enhances water quality by stabilizing pH levels and promoting a balanced aquatic environment. Its excellent physical adsorption properties support the rapid cultivation of nitrifying bacteria, which are crucial for maintaining healthy water conditions. Additionally, it helps effectively control

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- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
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4.7 ★★★★★
Based on 168 reviews
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Product Reviews
★★★★★ 4
Good
Size: 20 Line Spools+4 Caps
Great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Works like original equipment
Size: 16 Line Spools+4 Caps
Seems to handle the same work load as the manufacturer part. Good quality fit and design. No problems installing the string on the trimmer head. Definitely worth the purchase.
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Reviewed in the United States on September 18, 2025
★★★★★ 5
Great replacement item.
Size: 16 Line Spools+4 Caps
Fit perfectly but price fluctuates catch them at a low price and order multiples or reload the cassettes with bulk string yourself...easy.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
It was delivered next day
Size: 8 Line Spools+2 Caps
If it's like the previous line I purchased, it's good.
Don't leave it in a hot garage, because the line will sometimes stick together when you get around to using it!
NOTE:
Again, I received this product YESTERDAY, and Amazon is sending me a survey today!! What AMAZON brain surgeon thinks that this is a good idea????
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Reviewed in the United States on May 10, 2026
★★★★★ 5
Worx trimmer string
Size: 16 Line Spools+4 Caps
Perfect fit
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Reviewed in the United States on May 16, 2026




