This compatible Pitney Bowes 787-F yellow ink cartridges has been manufactured by one of our chosen partners to be compatible with all of the same printers as the genuine one (including the Pitney Bowes Connect+ 3500). The lengths that have been gone to to create an alternative to the Pitney Bowes 787-F means you can expect the same amount of impressions and comparable print quality too.Our Pitney Bowes compatible 787-F franking machine ink cartridges are filled with a high quality ink that is designed to offer hard wearing impressions from the moment it is installed. if you have any reservations then do not fear, each of our compatible Pitney Bowes 787-F franking machine cartridges comes with our 100% satisfaction guarantee.