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Lowell ES-4-RIB Rough-In Bridge for ES-4T Speaker
The ES-4-RIB is the placeholder that goes up before the drywall does. It fastens to joists, rafters, trusses, metal rails or whatever else forms the ceiling support structure, holding the position for a Lowell ES-4T speaker so the finish trade can close the ceiling around a known opening instead of cutting one later.
It is formed 20-gauge galvanized steel, 12 by 25 inches overall with a 7.25-inch centre opening, and 3/16-inch mounting holes punched on both 16-inch and 24-inch centres so it lands on standard framing either way. Made in the U.S.A. from certified U.S. steel. The ES-4T speaker is ordered separately; priced each, order in multiples of 10.
| Material | Formed 20-gauge steel, galvanized |
|---|---|
| Overall Dimensions | 12 x 25 in |
| Center Opening | 7.25 in diameter |
| Mounting Holes | 3/16 in diameter on 16 in and 24 in centers |
| Fits | Lowell ES-4T speaker (ordered separately) |
| Application | New construction, installed before drywall |
| Origin | Made in the U.S.A., certified U.S. steel |
| Order Multiple | 10 |
