Home » Product » Square Link Pattern GrilleSelect a CategoryCritical EnvironmentSupply GrillesReturn GrillesHinged Filter GrillesRemovable Filter GrillesCeiling DiffusersBar GrillesDampersDrum LouversAir ExtractorsAccessoriesArchitectural GrillesSecurity ProductsDoor GrillesAluminum ProductsSquare Link Pattern Grille 1″ Square Link – 38% Open 1-1/4″ Square Link – 40% Open 1-1/2″ Square LInk – 46% Open