ALITA® Silicone Membrane Diffuser Tubes Size:150mm 3") ST-300 300mm (11

3") ST-300 300mm (11

use air stones rather than these diffusers

bead filters rely on the use of a media that provides a high surface area/volume ratio

Furthermore

we'll buy it back

ALITA® Silicone Membrane Diffuser Tubes Size:150mm 3") ST-300 300mm (11The ALITA Silicone Membrane Diffuser Tubes are an extremely effective air diffusing media. With a diameter of 28mm (approximately 1. 1 inch), these tubes accept a connection of 1 2" FPT. Maximum recommended air flow: on 6" diffuser 20 liters per minute on 12" diffuser 40 liters per minute on 18" diffuser 80 liters per minute Model Effective (Diffusing) Length Overall Length ST 150 150mm (5. 9") 210mm (8. 3") ST 300 300mm (11. 8") 360mm (14. 2") ST 600