Lloyd Industries CRD-50-95-BT 90-degree register boot with ceiling radiation damper, 4 x 10 in register opening, 4 in round collar. 30 ga galvanized steel boot with a UL 555C CRD-50 damper and 165°F fusible link, for UL 1-hour fire-rated ceiling/floor and ceiling/roof assemblies.
Breaker sizing (MCA / max overcurrent), line set connection sizes and unit dimensions.
