ALITA® Silicone Membrane Diffuser Tubes Size:150mm Diffusers can be filled with

Diffusers can be filled with gravel or sand to keep weighted to the bottom of the pond

Measuring cup and dosage guide makes for easy application

3") ST-300 300mm (11

Pressure Gauge and Sight Glass with Gasket

use air stones rather than these diffusers

ALITA® Silicone Membrane Diffuser Tubes Size:150mm Diffusers can be filled withThe 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