B-Line Eaton series open racks, Aluminum, #12-24 mounting hardware, Telco gray powder coat, Low profile rack mounted ventilated shelf

Yes. The SB745V1919ATG is a low profile ventilated shelf built for 19-inch rack mounting, with 19 inches of depth and an overall width of 21.25 inches so the mounting flanges land on the rack rails. The 21.25 inch dimension is the flange-to-flange width, not the usable pan width, so allow for it when the rack sits in a tight closet or between wall-mounted gear.

It takes #12-24 mounting hardware, which is the thread B-Line uses on its open frame racks. If your existing rack is tapped #10-32 or uses square-hole cage nuts, the shelf will still bolt up but you need to supply screws matching your rails rather than reusing #12-24.

It is aluminum, not steel, and the shelf itself weighs 3.7 lb. Aluminum keeps the load on the rack rails low and will not rust in a damp telecom closet, which is why it suits low profile shelf duty for modems, media converters, and small network boxes rather than heavy UPS or battery loads.

Yes, it is a ventilated shelf, so the pan is perforated to let heat off equipment sitting on it rise through rather than pool under the chassis. For fanless gear stacked in an open frame rack that is usually the difference between it running cool and cooking.

Telco gray powder coat, the standard gray used across Eaton B-Line open frame racks and accessories. If your existing racks and cable management are B-Line in telco gray, this shelf matches them; it will not match a black-finish rack.

One part number covers it: MPN SB745V1919ATG, the aluminum telco gray ventilated low profile shelf at 19 inches deep. There are no finish or depth variations to specify, so the model number is the whole order.