ROBUST-AIRE DIFFUSER ASSEMBLY MANUAL
5
ASSEMBLY INSTRUCTIONS (CONT.)
3.
With the blue line on the tubing facing down, attach the substrate riser around the tee fitting. Rotate up
and secure the aeration tubing into the substrate riser.
4. Repeat step 3 to attach both substrate risers to the assembly.
For best performance, keep
an equal amount of tubing on
either side of substrate risers.
5. Slide the substrate edge guards onto the connector plate as shown.
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