Introduction
The Red Sea Reefer 225 Micron Felt Filter Bag (100 mm × 260 mm) is a high-quality mechanical filtration accessory designed to efficiently trap fine particles, detritus, and organic waste. Made from dense felt material, it provides superior filtration performance while maintaining smooth water flow—perfect for reef and marine aquariums where pristine water quality is essential.
Features
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225 Micron Felt Material: Dense felt fabric captures finer debris than mesh bags, improving water clarity and overall system hygiene.
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Durable and Long-Lasting: Built from high-quality, aquarium-safe materials that resist wear, offering extended usability with proper maintenance.
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Optimal Size: Designed with a 100 mm diameter and 260 mm length, making it perfectly compatible with Red Sea Reefer systems and standard 4" filter bag holders.
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Enhanced Filtration Efficiency: Effectively removes fine waste particles, leftover food, and detritus before they break down and affect water quality.
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Easy Maintenance: Can be cleaned and reused multiple times—simply rinse or soak in aquarium-safe cleaning solution between uses.
Usage Guidelines
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Place the felt filter bag in your sump or filtration chamber for immediate water polishing.
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Rinse thoroughly with freshwater after each use to remove trapped debris.
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Replace the bag when water flow decreases or visible wear occurs.
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Alternate between multiple bags for continuous filtration and convenience.
Recommendations
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Ideal for reef and marine tank owners seeking superior mechanical filtration and crystal-clear water.
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Use alongside protein skimmers and biological media for a complete filtration system.
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Regular cleaning helps maintain optimal flow rate and extends the filter bag’s lifespan.

