RectorSeal Fortress 4.5" Duct – 7.5 Ft Length – Gray LD122 Lineset Cover Heat Pump System High-performance inverter technology optimizes temperature

High-performance inverter technology optimizes temperature control while reducing power consumption

50" W x 21

efficient airflow performance

Crescent Wrench Set

000 BTU 22 SEER2 Ductless Mini-Split System — a complete package featuring six ceiling cassette air handlers (9K + 12K + 12K + 12K + 12K + 12K) paired with the powerful DIY-MULTI6-55HP230D-O condenser

RectorSeal Fortress 4.5" Duct – 7.5 Ft Length – Gray LD122 Lineset Cover Heat Pump System High-performance inverter technology optimizes temperatureThe RectorSeal Fortress 4. 5" Duct (LD122 Gray) is designed for long, straight exterior runs in mini split and HVAC lineset cover installations. At 7. 5 feet in length, this duct section reduces the need for additional couplers compared to shorter competitor pieces, allowing for cleaner, more efficient installs. Part of the Fortress Lineset Cover System, this duct is fully compatible with MRCOOL Line Guard kits and other LD122 (4. 5") lineset cover