Red Sea 100 Micron Felt Fine Polish Filter Bag — 4" x 10.5"

Red Sea 100 Micron Felt Fine Polish Filter Bag — 4" x 10.5"

Overview

Polish your aquarium water and trap fine particulates with Red Sea’s 100-micron felt filter bag. Sized to fit standard 4-inch filter sock holders, the dense felt material captures micro-debris for crystal-clear water and smoother skimmer/biological performance. Ideal for routine water polishing in reef and fish-only systems.

Key Features

• Fine 100-Micron Filtration – Captures small particulates, detritus, and food fines for superior clarity.

• Durable Felt Material – Thick, stitched construction resists collapse and maintains flow.

• Standard 4" Collar – Compatible with most sump sock holders for quick swaps.

• Optimized Length (10.5") – Efficient contact time without excessive back-pressure.

• Easy Maintenance – Rinse and rotate; machine-washable (no detergent) to restore performance.

• Reef & Fish-Safe – Inert materials suitable for marine or freshwater use.

Product Specifications

• Brand/Type: Red Sea filter bag (fine polish)

• Micron Rating: 100 µm (felt)

• Size: 4" ring diameter × 10.5" length (≈ 26 cm)

• Material: Polyester felt with reinforced stitching

• Top Style: Rigid 4" collar (standard sock holder fit)

• Recommended Use: Sump mechanical pre-filtration / water polishing

• Care: Rinse after swap; machine wash in warm water without detergent or fabric softener; air dry

• Replacement Cadence: Rotate/clean every 1–3 days; replace when fabric thins or seams wear