Internal Diameter: 3/8 Inch Internal (approx. 9.5mm) Outer Diameter: 1/4 inch External
Assembly Instructions:
Best to use a plumbing cleaner then pipe cement to assemble. Be sure you do not glue over the air hole of your manifold as it is easy to web the glue when using on a small area.
Additional Notes:
Often also used for the Ozone venturi. Fits in side 3/8 Inch Air Pipe
