Abstract: A system for attaching a facing product to a concrete substrate includes (a) a facing product having a front face and a back surface, the facing product being configured for attachment with a clip connector; and (b) at least one clip anchor connector having an anchoring portion for embedding in the concrete substrate, a spine, and a head portion configured and dimensioned to engage a convexity, recess or opening in the facing product. The spine is longitudinal and has a first end and opposite thereto a second end. The anchoring portion of the clip is positioned at one of said first and second ends. The engagement portion is positioned at the end of the spine opposite that of the anchoring portion and has at least one laterally extending wing configured to engage a convexity, recess or opening in the facing product member.