Return Grilles A complete line of return and exhaust grilles in fixed blade, cube core, and perforated configurations. Return grilles provide excellent performance while providing an attractive method for exhausting air from an occupied space. XG-CC Series Aluminum cubed core return and exhaust grilles. VIEW XG-CC Series https://catalog-api.greenheck.com/api/category/en-us/496 XG-RH Series Economical aluminum return and exhaust grilles. VIEW XG-RH Series https://catalog-api.greenheck.com/api/category/en-us/497 XG-RHE Series Premier extruded aluminum return and exhaust grilles. VIEW XG-RHE Series https://catalog-api.greenheck.com/api/category/en-us/498 XG-RP Series Perforated face return and exhaust grilles. VIEW XG-RP Series https://catalog-api.greenheck.com/api/category/en-us/499 XG-SRH Series Economical steel return and exhaust grilles. VIEW XG-SRH Series https://catalog-api.greenheck.com/api/category/en-us/500 XG-CC45 Series Aesthetically pleasing cube core grilles featuring a 45° core. VIEW XG-CC45 Series https://catalog-api.greenheck.com/api/category/en-us/557 XG-4000R Series Economical aluminum return grilles. VIEW XG-4000R Series https://catalog-api.greenheck.com/api/category/en-us/564 XG-4000RS Series Economical steel return grilles. VIEW XG-4000RS Series https://catalog-api.greenheck.com/api/category/en-us/565