Description Dedicate your air lines with Legacy ColorConnex air couplers. These special color-coded couplers match up with same-color plugs for easy, no-problem pneumatic interchanges. They eliminate confusion and the possibility of crossing and contaminating different air lines. ColorConnex couplers have zinc plated steel coupler bodies with color-coded, hard-anodized 6061-T6 aircraft aluminum sleeves. All ColorConnex couplers are sleeve-style couplers that won't come apart unless you disconnect them. Make sure that your connections are compatible--just connect the colors with ColorConnex air couplers from Legacy.