DPH® Storage System -- Handguns and More.
The patented Duo-Plus Extra Storage System is one of the most versatile components of the Browning ProSteel safe interior systems. DPH stands for the Duo-Plus Handgun (DPH™) Storage System.
It uses pouches, pockets and loops on the door back to hold handguns and many types of other items. These items are very easy to access, and by storing them on the door back, space inside the safe is freed to store more long guns or other items.
The DPH system is now an integrated part of the DPX storage system.