GP2048 SystemPod Pre-Cut for Garmin 820/820xs/840xs & 1 Instruments for 12 Wide GuardNavPod GP2040 Series - SystemPods for 12 Guards are for mounting one Raymarine C90W or E90W with two 3.6 holes for addtional marine electronics, all in one NavPod. This is a good way to reduce the height of a system. In addition to mounting a radar or chartplotter, you can have room for an autopilot, instrument, stereo controller, or VHF mic. A SystemPod is best mounted on a Single Bend AngleGuards.SystemPods for Power are for mounting on a SK135 Stachion Kit can be used to mount a SystemPod on a flat surface, such as the flybridge. Stachion Kits can also be used with a SystemPod for overhead mounting applications.Sizing:Overall Size: 9.5H x 20.25W x 6DUsable Face: 7.375H x 17.5W x 5DMax Cutout: 7H x 17WInstrument Cutout: 3.6All SailPods includeAcrylic capped ABS plasticChromed stainless steel tamper-poof fastenersDouble seal for watertight integrityModels are available pre-cut for popular electronicsStainless steel mounting hardware and mounting gaskets