Our premium coffee paper filters are suitable for Bozeman Percolator, vintage coffee pots, espresso machines, and espresso machines. Providing optimal extraction results, you get a cup of rich, delicious, bitter-free coffee. Food Grade Material: These espresso filters are selected from natural puree and have good air permeability, strength and water permeability. Every coffee lover should have this! Package Contents: You will receive 400 sheets of unbleached coffee filters with a diameter of 3.75 inches and a center hole of 0.39 inches. These replacement paper filters come in a clear sealed bag. Suitable for banquets, parties, restaurants and families, etc. Wide application: Whether at home or in the office, you can enjoy fresh coffee at any time, also suitable for restaurants and coffee shops. A useful tool for coffee lovers too! HIGH QUALITY FILTER: Use this coffee filter to improve the purity of your coffee while brewing. Effectively removes all tiny impurities, oils and bitterness from coffee while maintaining the style of the coffee, making the coffee taste better. Colour:White Material:Paper Size:about 95mm Package Contents: 400 x Percolator Coffee Filters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.