Aeration Product Specialists

Diffuser ExpressTM (DX) is committed to excellence in supplying diffusers, replacement membranes, and specialty diffuser items across all brands for new and existing water and wastewater treatment applications. DX delivers a stream of technology advances using EDI's quality products with "express" service and competitive pricing. Diffuser Express products will keep your aeration system at the front edge of technology. DX stocks a multitude of high-quality aftermarket replacement membranes and parts to upgrade your existing system for improved operational efficiency or increased capacity

Diffuser Express Bi-Fold
Diffuser Express Bi-Fold
Showing 23 items
AERCOR/Norton 7-inch Ceramic Dome to Membrane Conversion Kit
Replacement Polyurethane Flapper Check Valve for Wyss Unit
EIMCO Fine Bubble Disc to EDI Fine Bubble Disc Conversion
AERCOR/Norton Ceramic to Membrane Conversion Kit
Sanitaire 9-inch Ceramic to Membrane Conversion Kit
NOPON & Water ENG / WABAG / Hawker Siddley 7-in Porous PE/Ceramic to Membrane Conversion Kit

Engineering Guru?

The Diffuser ExpressTM catalog is your source to EDI's advanced technology aeration products for system expansions, system upgrades, and replacement parts. From here, you will benefit from the vast aeration and biological treatment expertise amassed from servicing customers from around the world since 1975.


Diffuser Express Catalog



Spec Sheet Download

File: Diffuser Express Parts Catalog

Our Team


Please don’t hesitate to get in touch regarding any questions.

Free consultation
5601 Paris Road
Purchasing Information
Purchasing Information

SanitareTM 9" Diameter

AercorTM 9" Diameter

EDITM 9" Diameter

SSITM 9" Diameter

U.S. FilterTM 9" Diameter

AquariusTM 9" Diameter




EDI FlexAirTM       


Gummi JagerTM


U.S. FilterTM


Parkson WyssTM

Parkson BioFuserTM        




Metric Sizes

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