Red Sea 225 Micron Felt Fine Polish Filter Bag — 4" x 10.5"

Red Sea 225 Micron Felt Fine Polish Filter Bag — 4" x 10.5"

Overview

Capture suspended debris and keep sump chambers cleaner with Red Sea’s 225-micron felt filter bag. The thicker felt balances efficient particle removal with stable flow, making it a great everyday mechanical pre-filter for reef and fish-only systems. Sized for standard 4-inch sock holders, swaps are quick and maintenance is simple.

Key Features

• 225-Micron Capture – Ideal for routine mechanical filtration without excessive clogging.

• Durable Felt Construction – Thick, stitched seams help prevent bypass and collapse.

• Standard 4" Collar – Fits most sump sock brackets for fast changeouts.

• Optimized Length (10.5") – Good contact time while maintaining steady sump levels.

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

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

Product Specifications

• Type: Felt filter bag (mechanical pre-filtration)

• Micron Rating: 225 µm

• Size: 4" ring diameter × 10.5" length

• Material: Polyester felt with reinforced stitching

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

• Recommended Use: Everyday water polishing / detritus capture in sump intakes

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

• Replacement Cadence: Rotate/clean every 2–4 days; replace when fabric thins or seams show wear