4.5" Exterior 90 (Vertical Outside 90) – Seamless One-Piece Design Upflow app-based control through the MRCOOL

app-based control through the MRCOOL Smart HVAC app

Environmentally Friendly: Uses next-generation R-454B refrigerant for efficient

highlight { background-color: #eef7ff

clean appearance every time

4.5" Exterior 90 (Vertical Outside 90) – Seamless One-Piece Design Upflow app-based control through the MRCOOL4. 5" Exterior 90 (Vertical Outside 90) Seamless One Piece Design The 4. 5" Exterior 90 (Vertical Outside 90) fitting is the perfect solution for creating clean, professional outside corners in HVAC line set cover systems with 4. 5" wide channel lengths. This one piece design clips onto the duct cover for a seamless, screw free look, while its adjustable depth and UV resistant construction ensure a secure, durable fit. For added customization, the