Click to expand Tap to zoom april paper filter 69,00 kr | / 1 box - 69,00 kr 20 boxes - 1.100,00 kr Size 1 box 20 boxes 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart This is our own customized wave-paper filter created to be used with the April brewing kit. 50 pcs per box. What makes this filter special 1. It's the only paper filter in the world made specifically for our brewing-kit2. Thickness of the paper 3. The material (a specific wood pulp) 4. Shape & form of the filter It's designed to create an optimal flow rate (how the water goes through the coffee).