18mm. Feature: Increase the oxygen solubility. . Feature2: Good permeability, easy to clean. Water inlet hole diameter: approx. Feature3: biological filtration to. Мощность: 1 Вт. Тип: Рыба. Size: 14cm x 14. 8cm. Fit
Suitable for : not bigger than 40L. Тип: Рыба. Мощность: 5Вт. Напряжение: 220-240В. Model number: Magi-200. Material: Plastic. Max Flow: 200L/Hour. Size: 3. 5 x 4 x 13cm