Powerful draught thanks to our Regular Size filters in a bag of 50 pieces. Our Regular Size activated carbon filter is also available in a resealable zip bag of 50 pieces The use of our activated carbon filters significantly reduces the absorption of pollutants and provides you with a cool, dry and aromatic smoking experience, which is also good for your health. Suitable for standard 9 mm pipes. Since both end caps are made of ceramic, there is no insertion or twist-in direction to consider. PURIZE® Filters are made from environmentally conscious raw materials, sustainable and "Made in Germany".