Red Sea 225 Micron Thin-Mesh Filter Bag — 4" x 10.5"

Red Sea 225 Micron Thin-Mesh Filter Bag — 4" x 10.5"

Overview

Maintain clear, stable sump flow with Red Sea’s 225-micron thin-mesh filter bag. The open monofilament mesh resists clogging and preserves water levels better than dense felt, making it a great everyday pre-filter for reef and fish-only systems. Sized for standard 4-inch holders, it swaps in seconds and rinses clean in moments.

Key Features

• Thin-Mesh, 225 µm – Captures debris while maintaining high flow and longer run time between cleanings.

• Fast Rinse, Quick Dry – Smooth monofilament mesh sheds detritus easily for rapid turnaround.

• Stable Sump Levels – Lower back-pressure helps keep return chambers from swinging.

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

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

• Durable Stitching – Reinforced seams help prevent bypass and extend service life.

Product Specifications

• Type: Thin-mesh filter bag (mechanical pre-filtration)

• Micron Rating: 225 µm

• Size: 4" ring diameter × 10.5" length

• Material: Monofilament mesh with reinforced stitching

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

• Recommended Use: Everyday detritus capture with maximum flow; ideal ahead of skimmers/rollers

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

• Rotation Cadence: Replace/clean every 2–4 days (bioload dependent)