Are the blue pre filters the ppl as the stock one’s

Hello. The blue pre-filters are 45 ppi, the orange pre-filters are 30 ppi and the black pre-filters are 60 ppi. If you need further assistance, please contact our customer service team at 866-627-3435, Monday through Friday, 8am -6pm EST. We hope this helps.

what color are these? It says black in the description. I want the blue filters which are 45ppi. I thought the black were 60ppi. Maybe an inaccurate?

Hello. Thank you for your question. Yes, these are the OASE blue pre-filter foams which are 45ppi (49560). The OASE black Pre-filter foams are 60ppi(49583). We hope this helps. Your Indoor Aquatic Specialist, Natalie.

What does ppi mean? i have the black ones that the filter comes with. what would be the difference if i use the other colors? thanks!!

PPI stands for "Pores per Inch". The black carbon pre-filter foams are 60 ppi, the blue are 45 ppi and the orange are 30 ppi. A foam with higher ppi will have more pores in it and a less water flow through rate. We hope this helps. Best Regards, Your OASE Aquatic Specialist, Jennifer.

What is the inner diameter of these sponges?

The inner diameter of the pre-filter foams is 9/16" inner diameter. We hope this helps! Best Regards, Your OASE Indoor Aquatic Specialist, Jennifer.

Pre Filter Foam Set Of 6 For The Biomaster 45

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Description

🌊 Dive into Cleaner Waters!

SIZE MATTERS - Replacement timing adapts to your aquarium's size and fish population.
EASY MAINTENANCE - Simplify your aquarium upkeep with easy-to-replace pre-filter foams.
OPTIMAL PERFORMANCE - Designed for the Bio Master 250, 350, or 600, ensuring peak filtration efficiency.
TAILORED FILTRATION - Customize your filter foams to suit your aquarium's unique ecosystem.
VERSATILE REPLACEMENT - Includes 6 fine replacement foams for extended use and convenience.

The OASE Indoor Aquatics Pre-Filter Foam Set includes 6 fine replacement filter foams designed for the Bio Master 250, 350, or 600. With customizable options to meet your aquarium's needs, this set ensures optimal filtration performance while simplifying maintenance. The package dimensions are 7.28" L x 2.28" W x 10.12" H, making it a compact solution for your aquatic environment.

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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