![a) 45 ppi Duocel SiC foam from ERG Materials and Aerospace Corp. b) 25... | Download Scientific Diagram a) 45 ppi Duocel SiC foam from ERG Materials and Aerospace Corp. b) 25... | Download Scientific Diagram](https://www.researchgate.net/profile/Michael-Serio/publication/260390833/figure/fig5/AS:667810275524645@1536229785921/a-45-ppi-Duocel-SiC-foam-from-ERG-Materials-and-Aerospace-Corp-b-25-ppi-TaoFil-FCF-2_Q320.jpg)
a) 45 ppi Duocel SiC foam from ERG Materials and Aerospace Corp. b) 25... | Download Scientific Diagram
![1 x DIY Fine 45 PPI Foam Media Sheet for Pond and Aquarium Filters 12'' x 9'' | eBay 1 x DIY Fine 45 PPI Foam Media Sheet for Pond and Aquarium Filters 12'' x 9'' | eBay](https://i.ebayimg.com/images/g/Gq4AAOSw7L9f-d1d/s-l1200.webp)
1 x DIY Fine 45 PPI Foam Media Sheet for Pond and Aquarium Filters 12'' x 9'' | eBay
![25 Ppi Silicon Carbide Ceramic Foam Filter - China Ceramic Foam, Ceramic Foam Filter Plate | Made-in-China.com 25 Ppi Silicon Carbide Ceramic Foam Filter - China Ceramic Foam, Ceramic Foam Filter Plate | Made-in-China.com](https://image.made-in-china.com/2f0j00nFthfUZrJagv/25-Ppi-Silicon-Carbide-Ceramic-Foam-Filter.jpg)
25 Ppi Silicon Carbide Ceramic Foam Filter - China Ceramic Foam, Ceramic Foam Filter Plate | Made-in-China.com
![Cotton Fish Tank Accessories | Foam Fish Tank Accessories | Filter Sponge Aquarium - Filters & Accessories - Aliexpress Cotton Fish Tank Accessories | Foam Fish Tank Accessories | Filter Sponge Aquarium - Filters & Accessories - Aliexpress](https://ae01.alicdn.com/kf/Hca7c8b8af1904f16a5a835ae5e9fae0bH/15-25-35-50PPI-Aquarium-Biochemical-Sponge-Filter-Practical-Fish-Tank-Accessories-Pond-Culture-Foam-Cotton.jpg)
Cotton Fish Tank Accessories | Foam Fish Tank Accessories | Filter Sponge Aquarium - Filters & Accessories - Aliexpress
![Foam samples: (a) 60 pores per inch (ppi); (b) 30 ppi; (c) 10 ppi; (d)... | Download Scientific Diagram Foam samples: (a) 60 pores per inch (ppi); (b) 30 ppi; (c) 10 ppi; (d)... | Download Scientific Diagram](https://www.researchgate.net/profile/Davide-Poggi-3/publication/231997066/figure/fig1/AS:413041528197120@1475488182041/Foam-samples-a-60-pores-per-inch-ppi-b-30-ppi-c-10-ppi-d-sample-of-the_Q320.jpg)
Foam samples: (a) 60 pores per inch (ppi); (b) 30 ppi; (c) 10 ppi; (d)... | Download Scientific Diagram
![10ppi-60ppi reticulated open cell polyether based polyurethane foam | Master Sponge & Foam Products Manufacturer 10ppi-60ppi reticulated open cell polyether based polyurethane foam | Master Sponge & Foam Products Manufacturer](http://www.spongesupplier.com/wp-content/uploads/2013/06/Reticulated-filter-foam-cell-structure10ppi-60ppi.jpg)
10ppi-60ppi reticulated open cell polyether based polyurethane foam | Master Sponge & Foam Products Manufacturer
![SHUNTING Bio-cotton Filter High-density Sponge Foam Pool Aquarium Fish Tank Water Filter Cotton (50x50x4cm-35PPI) : Amazon.co.uk: Pet Supplies SHUNTING Bio-cotton Filter High-density Sponge Foam Pool Aquarium Fish Tank Water Filter Cotton (50x50x4cm-35PPI) : Amazon.co.uk: Pet Supplies](https://m.media-amazon.com/images/I/71BfT2lxGLS.jpg)
SHUNTING Bio-cotton Filter High-density Sponge Foam Pool Aquarium Fish Tank Water Filter Cotton (50x50x4cm-35PPI) : Amazon.co.uk: Pet Supplies
![China Factory Customized 25 Ppi Ceramic Foam Filter Price for Filtering Molten Aluminum - China Ceramic Filter, Honeycomb Filter | Made-in-China.com China Factory Customized 25 Ppi Ceramic Foam Filter Price for Filtering Molten Aluminum - China Ceramic Filter, Honeycomb Filter | Made-in-China.com](https://image.made-in-china.com/202f0j00zgrGYykLVfbh/China-Factory-Customized-25-Ppi-Ceramic-Foam-Filter-Price-for-Filtering-Molten-Aluminum.webp)
China Factory Customized 25 Ppi Ceramic Foam Filter Price for Filtering Molten Aluminum - China Ceramic Filter, Honeycomb Filter | Made-in-China.com
![Amazon.com : ViaAqua 2 Pack X-Large Overflow Filter Box Intake Round Pre-Filter Foam Sponge 5.91" x 4.13" for Aquariums and Ponds (Coarse 25PPI) : Pet Supplies Amazon.com : ViaAqua 2 Pack X-Large Overflow Filter Box Intake Round Pre-Filter Foam Sponge 5.91" x 4.13" for Aquariums and Ponds (Coarse 25PPI) : Pet Supplies](https://m.media-amazon.com/images/I/71pTYVXbtBL._AC_UF1000,1000_QL80_.jpg)
Amazon.com : ViaAqua 2 Pack X-Large Overflow Filter Box Intake Round Pre-Filter Foam Sponge 5.91" x 4.13" for Aquariums and Ponds (Coarse 25PPI) : Pet Supplies
![Buy 15 Ppi 20 Ppi 25 Ppi Polyurethane Open Cell Reticulated Bio Foam Sponge Filter from Pingxiang Guangyu Import And Export Trade Co., Ltd., China | Tradewheel.com Buy 15 Ppi 20 Ppi 25 Ppi Polyurethane Open Cell Reticulated Bio Foam Sponge Filter from Pingxiang Guangyu Import And Export Trade Co., Ltd., China | Tradewheel.com](https://img2.tradewheel.com/uploads/images/products/6/7/15-ppi-20-ppi-25-ppi-polyurethane-open-cell-reticulated-bio-foam-sponge-filter1-0755254001627046604.jpg.webp)