Coarse Pore Aquarium Filter Sponge

As a factory with 20 years of experience in filter foam production, we have launched this Coarse Pore Aquarium Filter Sponge, specially developed for the physical filtration scenarios of aquariums and fish ponds. Made through a large-pore fully open-cell polyurethane foaming process, it has large pores and strong water permeability, which can quickly intercept large particle impurities, food residues and fish feces in the water body. At the same time, it has low water flow resistance and is not easy to block, making it the core primary filtration consumable for aquarium filtration systems.

 

This Coarse Pore Aquarium Filter Sponge has a high open cell rate and smooth water flow, which will not cause overflow of the filtration system. At the same time, the pore structure is conducive to the attachment of nitrifying bacteria, which can simultaneously achieve the dual effects of physical filtration and basic biochemical bacteria cultivation. We precisely control the foaming pore size to ensure that the filtration accuracy and water permeability of each piece of Coarse Pore Aquarium Filter Sponge are stable and consistent. It is the preferred filter consumable for overseas aquarium supplies brands and pet supplies channels.

 

Unlike fine-pore filter sponge that is easy to block and requires frequent cleaning and replacement, our product adopts a coarse-pore design with large dirt holding capacity, which can accommodate more impurities and has a longer cleaning cycle, reducing the maintenance frequency for fish farming users. The product is flexible and elastic, can be washed repeatedly for recycling, is not easy to break and shed crumbs, and its service life far exceeds that of ordinary filter cotton.

 

For filter tanks and filter barrels of different specifications, we can provide cutting services of different sizes and thicknesses, and can also customize special shapes such as cylindrical and square to adapt to various aquarium filtration equipment. For overseas aquarium supplies agents and pet supplies merchants, this product is a basic rigid consumable for aquarium filtration, with a wide audience and high repurchase rate, and is an essential category for improving the aquarium product line.

 

 

 

Parameter	Parameter Range
Material	Fully open-cell polyurethane sponge
Pore Specification	10-20PPI (coarse pore)
Density Range	10-20kg/m³
Density Tolerance	±0.5-1kg/m³
Open Cell Rate	≥97%
Standard Thickness	20mm-50mm (customizable)
Product Features	Strong water permeability, large dirt holding capacity, washable repeatedly

 

 

• Aquarium filtration: physical primary filtration layer of aquarium top filter, bottom filter and side filter, coarse filtration layer of filter barrel
• Fish pond landscape: outdoor fish pond filtration, landscape pool filtration, koi pond pre-filtration
• Aquaculture: small aquaculture pond filtration, nursery pond water filtration
• Aquarium equipment: built-in filter, external filter barrel, trickle box matching filter cotton
• Other scenarios: waterscape tank filtration, swamp filtration pre-filter, small water circulation system coarse filtration

 

 

We support full-dimensional OEM/ODM customization services. According to customers' filtration equipment specifications and use needs, we can customize the corresponding specifications of Coarse Pore Aquarium Filter Sponge. Customizable dimensions include pore size, density, thickness, size and shape. We also provide deep processing services such as special-shaped cutting, punching, cylinder forming and composite filter cloth, and can match customers' brand packaging.

 

Conventional spot samples can be delivered in 3-5 days, and the development cycle for special custom samples is 10-15 days. Samples can be provided free of charge. The product has a flexible minimum order quantity, and mixed loading of products with different pore sizes and sizes is allowed in a single order, which can flexibly meet customers' small-batch trial orders and batch procurement needs. We will confirm key parameters such as pore size and size with customers before proofing to ensure that the finished products perfectly fit the filtration equipment and achieve the expected filtration effect.

 

 

We have established special quality inspection standards for aquarium filter sponge, implementing a full-process three-level quality inspection for this product. When raw materials enter the factory, we verify the purity and environmental protection indicators of polyurethane raw materials to ensure that the raw materials are non-toxic and harmless and will not cause harm to aquarium organisms such as fish and shrimp; during the foaming production process, we conduct random inspections of pore size, open cell rate and density uniformity at frequent intervals to ensure that the filtration accuracy and water permeability meet the standards; after finished product cutting, 100% full inspection of appearance and size is implemented to ensure no damage, no crumbs and no hard cores, and the density error is strictly controlled within 0.5-1 density unit.

 

Each batch of products is retained with samples and accompanied by a factory quality inspection report. We also accept third-party on-site inspection, comprehensively guaranteeing the filtration performance and use safety of the product, and ensuring that it will not cause adverse effects on the aquarium ecosystem.

 

 

We entered the foam industry in 2004, and are a factory with 20 years of experience in filter foam production. The factory covers a total area of 20,000 square meters, equipped with full-process production equipment such as fully automatic foam foaming lines, CNC special-shaped processing equipment, horizontal and vertical cutting equipment. With a monthly production capacity of 2,000m³-4,000m³, we can stably undertake large-batch orders.

 

The factory has an independent R&D team, which has been deeply engaged in the field of filter foam for many years, and can optimize pore size accuracy and formulas for different filtration scenarios. All production links comply with local environmental protection regulations, with a complete environmental assessment report, and have passed the ISO9001 quality management system certification. The whole process from raw material foaming to finished product processing is completed independently, which can not only ensure the stability of product filtration performance, but also provide overseas aquarium supplies agents with more competitive procurement prices and sufficient production capacity guarantee.

 

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