PAC501 is the next generation of the PAC500 In-Wall Accessory. The PAC501 provides improved electrical options with an included RACO style junction box and saves installation time when used with a pre-assembled in-wall swing arm. Designed to hide a swing arm mount in the wall, taking installations to an even lower profile. Compatible with the PNRIW, PWRIW, MWRIW swing arms. Note: Does not include trim kit. Trim kit ships with PNRIW, PWRIW and MWRIW dedicated in-wall swing arms.