The JBL RIF6C Snap-Together Rough-In Frame Kit is compatible with the JBL HTI-6C and SP-6C in-wall speakers. These frames are designed to be installed in wall before drywall is hung. This kit includes two frames. Perfect for remodeling to ensure that the quickest, easiest and most professional looking method is fully taken advantage of, the JBL Frame Kit provides a seamless, sleak addition to your existing decor.