APM Modular Core, Aluminum

Perforated Diffusers

The four individual louver modules that come with the APM Modular Core are easily removable and can rotate smoothly in various directions. These high-performance diffusers help in heating, ventilating and cooling applications in both constant and variable volume systems.

  • Removable hinged perforated face goes well with any ceiling
  • Adjustable 1, 2, 3 or 4-way air pattern, without any need for tools
  • Available in standard White (WH) finish
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Product Application

A single diffuser that delivers a multitude of air patterns—this is what we offer with our model APM. It is designed with special modular cores that can easily snap in and out to create 1, 2, 3, or 4-way air pattern. This is achieved without out the help of any special tools, making the diffuser an easy-to-use solution for your flexible requirements. It can be used in spaces that need constant change in air patterns like offices, shopping malls and libraries.
Product Application


  • Perforated face has 3/16” holes on 1/4” staggered centers and no less than 51% free area
  • Comes in a White (WH) electrocoat finish and in an anodic acrylic paint, baked at 315°F for 30 minutes with a pencil hardness of HB to H
  • A multitude of air patterns can be achieved with a single diffuser
  • Aluminum plaster margin (ASMF)
  • Louver modules can be removed for access to the mounting margin and neck damper
  • Four individual louver modules can be set in a 1-way, 2-way, 3-way or 4-way air pattern and are adjustable without the use of tools
  • Steel plaster margin (SMF)


Easy Repair
Easy Repair

Easily removable louver modules ensure trouble-free maintenance and cleaning.

Effortless Setup
Effortless Setup

With modules that can be adjusted without any tools, field setup becomes easy.