Fortress™ Standard professional grade duct and fittings. More moderate price point.

fortinstallFortress professional duct/ fitting system hides unsightly AC lineset.
2 duct sizes – 3.5″ and 4.5″, accommodate single or multiple lineset configurations.
Longer ducting lenght – 8ft. Allows for fewer joints.

fortfits

Complete fitting line. 17 fittings assure a complete professional finish for even the most demanding installations.
1 Year Warranty. Professional grade polymers to deliver long lasting durability.

fdinstall

3 Step installation is a snap.

FORTRESS 92mm (3.5″)

fdwsmalllink
WHITE – 3.5″

  • Fortress Duct & Fittings

fdismalllink
IVORY – 3.5″

  • Fortress Duct & Fittings

fdgsmalllink
GRAY – 3.5″

  • Fortress Duct & Fittings

fdbsmalllink
BROWN – 3.5″

  • Fortress Duct & Fittings

 FORTRESS 122mm (4.5″)

fdwlargelink
WHITE – 4.5″

  • Fortress Duct & Fittings

fdilargelink
IVORY – 4.5″

  • Fortresst Duct & Fittings

fdglargelink
GRAY- 4.5″

  • Fortresst Duct & Fittings

fdblargelink
BROWN – 4.5″

  • Fortresst Duct & Fittings

41Fv54p5-DL._SY355_

Fortress LDK 12′ Lineset Wall Duct Kit