Lee's AQ2 Aquarium Divider System 20H Gallon
Size 12” x 16”
Lee's AQ2 Aquarium Divider System can be used to create separate compartments in your aquarium while maintaining overall heat circulation and unobstructed filtration. Fits most 20H gallon aquariums. Size: 12” x 16”; will fit inside dimensions up to: 12-1/8" x 16-1/2".