Are the orange filters coarse? I thought orange was fine and coarse was black??

The orange pre-filter foams are 30 ppi coarse foams. We hope this helps. Best Regards, Your OASE Aquatic Specialist, Jennifer.

What are the dimensions

Hi, the dimensions are 3.8 x 2 x 6 inches. We hope this helps.

What is the center hole diameter?

Hello. The measurement for the center hole is 1/2 inch inner diameter. We hope this helps!

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🧽 Elevate your aquarium’s clarity—because your aquatic friends deserve the best!

SIX PACK CONVENIENCE - Keep your aquarium pristine with six durable, easy-to-replace filter foams.
LIGHTWEIGHT COMPACT - At just 40g and small dimensions, it fits seamlessly without bulk.
MAINTENANCE MADE SIMPLE - Replace based on your tank’s size and bio-load for peak water clarity.
UNIVERSAL COMPATIBILITY - Designed for BioMaster 250, 350, and 600 models—one set fits all.
TAILORED FILTRATION POWER - Customize foam density to perfectly match your aquarium’s unique ecosystem.

The Oase Indoor Aquatics Pre-Filter Foam Set includes six 30 PPI coarse black foams designed for BioMaster 250, 350, and 600 aquarium filters. Lightweight and compact, these replacement foams allow customizable filtration tailored to your tank’s size and bio-load, ensuring optimal water quality and a thriving aquatic environment.

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Product Dimensions	15.75 x 5.84 x 12.45 cm; 40 g
Item model number	49626
Pet Life Stage	All Life Stages
Allergen Information	Hazelnuts Free
Colour	Black
Quantity	1
Specific Uses	Indoor
Batteries required	No
Batteries Included	No
Item Weight	40 g

OaseIndoor Aquatics Pre-Filter Foam Set of 6 for The Biomaster 30 Ppi, Black

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