1.Filter material: PP cotton + coconut shell activated carbon 2.Sponge material: sponge 3.Filter size: 12.3x12.3x0.8cm Outer Diameter:12.3cm Inner Diameter:3.5cm 4.Sponge size: 4.9x2.5x2cm 5.Pack list: 6 filters, 6 sponges, 1 Sponge Fixing Bracket 6.Pack size: 13x6x13cm Weight/pack: 0.15kg 7.QTY/CTN: 72 pack/CTN 8.Carton size: 47x45x42cm (0.09CBM) 9.CTN G.W: 11.80kgs CTN N.W:10.90kgs 10.The filter element uses coconut shell activated carbon, which is environmentally friendly and has a good filtering effect. 11.Replace the filter and sponge every 20~30 days 12.Patent: Chinese patent, EU patent, US patent. 13.Certification:ROHS FDA test report by SGS