![2N® Helios IP Verso™ 1 Module Flush Mount Front Frame [9155011]](http://emacspruebaamerica.myshopify.com/cdn/shop/products/9155011_grande.png?v=1494920731)
Reference:
9155011
Flush-mount Back Box for 2N® Helios IP Verso™ Door Intercom. Accepts 1 x Verso Additional Module. Finished in rugged plastic. Use with 9155011 Flush-mount Front Cover Frame.