Return Grilles A range of economincal and aesthetically pleasing return grilles. Stainless steel return grilles offer excellent performance while offering an aesthetically pleasing means for exhausting air in critical applications. XG-4000RSS Series Stainless steel sidewall return grilles. VIEW XG-4000RSS Series https://catalog-api.greenheck.com/api/category/en-us/633 XG-CC5FSS Series Stainless steel cube core return with 1 inch filter rack. VIEW XG-CC5FSS Series https://catalog-api.greenheck.com/api/category/en-us/634 XG-CC5SS Series Stainless steel return grille with steel cube core. VIEW XG-CC5SS Series https://catalog-api.greenheck.com/api/category/en-us/635 XG-RHFSS Series Stainless steel fixed louver return with 1 inch filter rack. VIEW XG-RHFSS Series https://catalog-api.greenheck.com/api/category/en-us/636 XG-RHSS Series Stainless steel sidewall return grilles with fixed louver. VIEW XG-RHSS Series https://catalog-api.greenheck.com/api/category/en-us/637 XG-RPFSS Series Stainless steel perforated return with 1 inch filter rack. VIEW XG-RPFSS Series https://catalog-api.greenheck.com/api/category/en-us/638 XG-RPSS Series Stainless steel perforated face return grilles. VIEW XG-RPSS Series https://catalog-api.greenheck.com/api/category/en-us/639