Fine Pore Air Diffuser Stone Model #009NF {1.5" x 1.5" x 9"} with 1/2" NPT Polyethylene {Same as ALR230}

100% Glass-Bonded Silica Air Diffuser Stones

**Suggested CFM .75 or LPM 21.24 **Weight 1.35 lb.

Maximum Pore Size 80 Microns

Service life at PH Below 8.0 UNLIMITED

Aeration increases surface agitation and oxygen levels,

thereby eliminating "dead spots" and water stratification.

Bubblemac air stones are self-weighted and produce uniform bubbles,

and are also resistant to clogging.

(A mild acid bath restores the diffuser to like-new performance)

A copy of the cleaning instructions come with every purchase.

And for your convenience are also available on the web-site.

Our Diffuser Bumpers increase the efficiency of the air stone by

providing 20% additional bubble area. (the underside of the diffuser)

Bubblemac Aeration Products provides the

"Highest Quality Air Diffusers Available on the Market Today"