4 DOUBLE WALL ADJ 90

4 DOUBLE WALL ADJ 90

🔧 What it is

• Size: 4 inch
• Type: Adjustable 90° elbow (adjustable bend fitting)
• Construction: Double-wall (inner duct + insulated outer wall)
• Function: changes direction of airflow by up to 90 degrees

⚙️ What it does

• Redirects airflow in a 4" duct/vent system
• Adjustable design allows angle flexibility (not fixed 90°)
• Maintains insulated airflow path
• Reduces:
  • Heat loss
  • Condensation
  • Noise transfer

$90^\circ$

🧱 Key features

• Adjustable elbow (flexible angle up to 90°)
• Double-wall construction for insulation and durability
• Inner liner maintains airflow efficiency
• Outer shell provides protection and rigidity
• Slip-fit or gasketed connections depending on system typ