Insulated PVC Rectangular Duct 256x48mm Triple-Channel Rubber-Foam Insulated Underfloor Ventilation Ducting with Aluminum Foil Cover for Fresh Air HVAC System OEM

Insulated PVC Rectangular Duct 256x48mm — Triple-Channel Rubber-Foam Insulated Underfloor Duct

An insulated rectangular PVC duct for underfloor fresh air supply. The triple-channel inner core is wrapped in 5 mm rubber-plastic foam and finished in aluminium foil, so a large-volume supply run can be installed under the floor with both stiffness and condensation protection. Each piece is 8 metres and the standard finish is silver grey.

Key Features

• Triple-channel PVC core — a stiff, load-resistant flat section
• 5 mm rubber-plastic insulation — anti-condensation on cold supply runs
• Aluminium foil outer wrap — continuous vapour barrier
• 8 m per piece — long runs with fewer joints
• Silver grey finish — a neat appearance where visible

Technical Specifications

Typical Applications

• High-volume underfloor fresh air supply distribution
• Floor build-ups where a 256 x 48 mm section is acceptable
• Large apartments and villas with several floor outlets per run

System Matching

Combine with our uninsulated PVC rectangular flat duct, insulated elbow and connector, floor supply outlet assembly and insulated distribution box.

FAQ

Q: What is the difference from the 256x48 uninsulated version?
A: This version adds a 5 mm rubber-plastic insulation layer and aluminium foil wrap for condensation control.

Q: How long is each piece?
A: 8 metres per piece, as listed in the specification table.

Q: Which outlets match this duct?
A: See our rectangular floor supply air outlet assembly for 256 x 48 mm flat duct.