Manufactured from premium-grade polyurethane (PU) foam, the Black Cube Filter Sponge features a durable, scratch-resistant surface with uniform porous structure. These sponge cubes are specifically designed for mechanical and biological filtration applications, typically installed in sump filters, aquarium filter chambers, and industrial filtration systems. The standardized cube shape allows for modular arrangement in various filtration setups, while the dark black color effectively conceals debris accumulation between maintenance cycles.

A: Our Black Cube Filter Sponge is manufactured from premium polyurethane (PU) foam, known for its consistent porosity and mechanical strength. All materials comply with ROHS and REACH standards.

A: We offer a wide range of PPI ratings from 10 to 60, allowing you to select the perfect density for your specific filtration needs, from coarse mechanical filtration to fine particle removal.

A: Yes, we specialize in customization. We can produce cubes in various dimensions and densities according to your specifications. OEM and ODM services are available.

A: We are pleased to offer free samples for quality evaluation. Customers are responsible for the shipping costs. Please contact our sales team to request samples.

A: Our professional quality control department conducts strict inspections throughout the production process, from raw material selection to finished product testing, ensuring consistent performance in every batch.

A: We offer flexible MOQs to accommodate both small and large-scale projects. Please contact us with your specific requirements for detailed MOQ information.

A: Standard orders typically ship within 7-15 days. For custom projects, the lead time may vary between 15-25 days depending on order complexity and quantity.