The Brewista Hour Glass Brewer 3/5 Cups is a revolutionary redesign of classic brewers and it works with virtually any style paper filter - square, circular, full cone, flat V cone and standard or tall basket styles! The patented vent tube and ribbed interior make it possible to use any style filter you like, as well as preventing the vacuum issue which leads to overflow during the bloom. These ribs also keep filters from sticking to the sides when wet, so removing grounds is simple and mess free. The Brewista Hourglass Brewer 3/5 cup uses an innovative dual spout design provides a smooth serve, while the ergonomically designed profile and non-slip, heat-resistant silicone wrap make it easy to handle. Durable tempered borosilicate glass maintains the temperature of your brew without cracking under quick temperature changes. Features Vent tube ensures consistent brewing Tempered borosilicate glass Thick, protective silicone wrap Dual pour spouts for smooth serving Interior ribs prevent filters from sticking Perfect for brewing up to 3/5 cups at a time Fits standard #2 (3 cup) / #4 (5 cup) cone style paper filters or HARIO 02 Size V60 Filter Papers or X Series Full Cone Filters Works with virtually any style coffee filter - square, circular, full cone, flat V cone and standard or tall basket styles! Specifications 3 cup Dimension: 4 x 4.3 x 8.5 inches Capacity: 500ml Brewing 1-3 cup 5 cup Dimension: 5.3 x 6 x 8 inches / TOP Diameter 125mm x BASE Diameter 135mm x H 200mm Capacity: 750ml Brewing up to 5 cup