Replacement Filter Pads for SUNSUN/GRECH/AQUATOP HW-303B CF400 Aquarium Filters (12 Fine + 4 Coarse)

Product Compatibility: This filter is designed to fit a variety of popular aquarium canister filters, including the SUNSUN HW-303B, HW-505A, the AQUATOP UV CF400, and the Grech GW-303B. It is also suitable for the Polar Aurora 370gph UV filtration system.

Key Features: This filtration system offers dual benefits: both mechanical and biological filtration. The white fine pads effectively filter out small particles to ensure crystal clear water. Meanwhile, the blue coarse pads capture larger visible particles without hindering water flow and serve as a habitat for beneficial bacteria. Notably, the blue pads can be rinsed and reused, making them an economical and sustainable choice.

Dimensions: Each filter pad measures 7.5 inches in length, 7.5 inches in width, and 0.75 inches in height, making them compact yet efficient for your filtration needs.

Package Contents: In this package, you will receive 4 blue coarse pads and 12 fine white pads, providing you with ample resources to maintain your aquarium’s cleanliness and health.

Sponge Maintenance Guidelines: To maintain the sponge’s effectiveness, it should be rinsed whenever it appears dirty, which is generally every 1 to 4 weeks. To preserve the beneficial bacteria that thrive in the sponge, it is advisable to rinse it gently using water from your fish tank rather than using tap water. Over time, specifically after 6 to 12 months of use, micro-holes within the sponge may become clogged with tiny debris, leading to reduced living space for beneficial bacteria and a decline in filtration efficiency. Therefore, it is recommended that the sponge be replaced once it reaches 6 to 12 months of usage or when it shows signs of wear and tear.

Filtration Efficiency: This filtration system not only successfully removes tiny dirt particles but also maintains optimal water flow, making it suitable for both freshwater and saltwater aquariums. It’s engineered to fit perfectly with SUNSUN, AQUATOP, and Polar Aurora models, particularly the HW-303B and CF400 UV filters.

In conclusion, this filter pad system provides a robust solution for maintaining a healthy and clear aquarium environment. With its dual-functionality, reusable blue pads, and effective fine filtering capabilities, it is an essential addition to any aquarium enthusiast's setup. By following the provided maintenance tips, you can ensure the longevity of your filter performance and the health of your aquatic life.

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