This beaker is a Universal size replacement for all Grosche French presses. The replacement beaker comes in four sizes: 350ml/11.8 fl. oz/3 cup, 800ml/28 fl. oz/6 cup, 1000ml/34 fl. oz/8 cup, 1500ml/51 fl. oz/12 cup. The beaker will fit all major brands of French Presses. Each beaker is made from borosilicate, heat-resistant glass. Please check your particular French press size and beaker to ensure you choose the right size.