Since 1924, AJ Manufacturing has specialized in custom and standard stainless steel return and supply grilles. ACI Mechanical Sales carries the full line of return grilles and supply grilles from AJ Manufacturing.


250 Series
Double Deflection Supply Grille

250 HD Series
Heavy Duty Double Deflection Supply Grille

550 Series
Single Deflection Return Grille

550 HD Series
Heavy Duty Single Deflection Return Grille

SSMLCD
Modular Louvered Ceiling Diffuser

S-44G
Opposed Blade Damper

1900
Operable Door Grille

Ceiling Mounted FFU
Criti-Clean

FPLFD HEPA
Criti-Clean
250 Series Surface Mount Submittal
250 Series Layin Mount Submittal
250 HD Series Surface Mount Submittal
250 HD Series Layin Mount Submittal
550 Series Surface Mount Submittal
550 Series Layin Mount Submittal
550 HD Series Surface Mount Submittal
550 HD Series Layin Mount Submittal
SSMLCD Surface Mount Submittal