Eheim Undergravel Filter (Suction)

Description

The Suction Principle (3541) uses the floor bottom as large filter surface. Suitable for marine aquaria, frewater aquaria and unplanted breeding tanks.The Eheim under gravel filters are made using 3 5/8″ square modules which can be arranged to suit your needs using from 4 to 24 modules. To give you an idea you could use for modules to make it 7.25″ x 7.25″. If you had a bigger tank you could make it 10.875″ X 29″ or 21.75″ X 21.75″. Product Size (W x D x H): 16.5 x 6.7 inches (42 x 17 x 9.7 cm)