The 1598PLF-AL is a 2-pack of aluminum end panels, listed in the 1598R ordering table as the extra aluminum panel pair for the 1598RFBK shielded instrument case. It is the part to order when a project needs spare front and rear panels - for example, a second set to drill for a revised connector layout, or replacements for panels that have already been machined.

The panels are aluminum in a natural aluminum color and are sold as a set of two ("aluminum endplate set"). They ship in a bag at a shipping weight of 0.04 lbs (0.02 kg) and are RoHS and REACH compliant.

The matching enclosure, 1598RFBK, is the long, low-profile member of the series at 250 mm long, 159 mm wide and 41 mm deep in the ordering table. That case is a copper-coated EMI/RFI shielded ABS enclosure, and the series specifies its front and rear panels as 1.6 mm (0.064") brushed aluminum with protective paper on one side.

Order 1598PLF-AL only for the 1598RFBK size; other 1598R cases use their own panel pairs (for example 1598PLG-AL for the deeper 1598RGBK). The tilt bail kit listed for the same enclosure is 1598TH1.