Opencart Page End Slidebox- This is the best related product Module In Opencart. This Awesome End of Slide Page module display your(s) related product on Opencart. You can display one product or many products in a list by using this module. Features: It supports – related products on product Compatible with all the latest web browser’s Firefox, Chrome and Internet Explorer-7,8 Its very easy to configure and handy to use user can change background color and text color You can set no of products for showing related product Automatic loading user can set height and width of the module You may visit complete list of modules for Opencart right here http://oc.webkul.com/oc/opencart