Fluval U3 Poly/carbon Cartridge 2 Pack

Fluval U3 Poly/carbon Cartridge 2 Pack — Replacement for central chamber of Fluval U3 Internal Filter

The Fluval U3 Poly/Carbon Cartridge 2 Pack (SKU: PF133b) is a specialised 2-in-1 replacement media set designed specifically for the central chamber of the Fluval U3 Internal Filter. Combining a micro-polyester polishing side with research-grade activated carbon, this cartridge delivers simultaneous micro-particle straining and high-capacity chemical adsorption.

Regular cartridge replacement removes dissolved organic pollutants, chlorine remnants, heavy metals, and unsightly water colouration, maintaining optimal transparency and water purity.

Usage & Application

When to Use

• Routine Monthly Servicing: Replace every 2 to 4 weeks to maintain maximum chemical adsorption power.

• Clearing Water Turbidity: Use when aquarium water appears hazy, yellowed, or emits unpleasant odours.

How to Use / Installation Process

1. Unplug the U3 filter and flip open the top cover.

2. Remove the middle media housing and take out the spent cartridge.

3. Rinse the new poly/carbon cartridge under clean running water to remove excess carbon fines.

4. Position the new cartridge into the media frame and slide it securely back into the filter.

Product Specifications & Highlights

Key Features

• 2-in-1 Chemical & Mechanical Cleaning: Poly-fibre layer polishes water while carbon adsorbs dissolved waste.

• Tailored for Fluval U3: Form-fitted for perfect insertion into the central U3 cartridge bay.

• Removes Toxins & Odours: Adsorbs heavy metals, phenols, pigments, and organic pollutants.

• Value Pack: Includes 2 ready-to-use replacement cartridges.

Product Details

• Brand: Fluval

• SKU: PF133b

• Barcode (GTIN/UPC): 0015561104913

• Product Type: Filter Media / Poly & Carbon Cartridges

• Package Dimensions: 64 mm (L) × 188 mm (W) × 32 mm (H)

• Gross Package Weight: 45 g

• Target Environment: Freshwater & Marine Aquariums using Fluval U3 Filters