Ultra-Duct Insulated Air Conditioning Ducts


What is Ultra-Duct?

Ultra-Duct products are insulated air conditioning ducts made from reflective insulation for recreational vehicles, conversion vans and specialty vehicles. Consisting of a 1/8-inch-thick* polystyrene core sandwiched between two layers of aluminum foil, Ultra-Duct achieves outstanding airflow in space-constricted applications.

*Allow for the variance of .063"

Why Use Ultra-Duct for RV AC?

  • Reflective foil provides a barrier to radiant heat intrusion, enhances HVAC system performance
  • Thin wall material maximizes duct interior, increasing air output
  • Non-toxic
  • Fiberless
  • Tested for use as A/C ducts in RV units
  • Lightweight
  • Easy to install
  • Available pre-cut for easy fold and tape or fully assembled
  • Variety of standard sizes; custom sizes are our specialty
  • Ultra-Duct products are ideal for any space-limiting application

Standard Sizes

1.5" x 7" x 96" 1.75" x 8.5" x 96" 2" x 7.5" x 96' 2" x 8" x 96'

Elbows and Tee's to fit standard sizes.
Custom sizes and styles available as special order.

Compare ULTRA-DUCT with a competitive foam/foil structure

Competitor InsulTote
Total Cross Section Area: (2" x 8') = 16.0 in2 Total Cross Section Area: (2" x 8') = 16.0 in2
Wall Thickness: 1/4" Wall Thickness: 1/8"
Total Wall Cross Section: 1/4" x 20" = 5.0 in2 Total Wall Cross Section: 1/8" x 20" = 5.0 in2
Only 11.0 in(2) Remains for Moving Air! 13.50 in(2) Remains for Moving Air!
Over 20% MORE than the competition!

Product Description

Aluminum foil / 42# kraft / polystyrene foam / 42# kraft / aluminum foil.

Components Description

Foil: Boiling Point:
Melting Point:
Flammable Limits:
0.04 oz/ft3
Kraft: Flash Point (kraft): 450°
Polystyrene Core: Meets FDA Spec:
Tensile ASTM D638:
Title 21, CFR177.160
Modulus, 103 psi 480
GPa 3.31
Structure Data: Elongation:
Vicat Softening Point ASTM D1525:
Flammability Class:
FMVSS-302 Flame Test:
Burn Rate:

Foil Surface Reflectivity:

1.5% at break
200°F - 93°C
UL94, 94HB