Possibility to choose between profiles with three installation depths: 68mm, 78mm, 88 mm in three types of wood: three- or four-layer solid square timber: meranti 450+, pine and larch, with aluminum clad on the outside.

Glass – Two-glass package with 24 mm thickness in standard, with thermal transmittance coefficient Ug = 1,0 W/(m2K) according to the PN-EN674 norm; the possibility to apply two-, three- or four-glass packages

• For Duoline 68 mm – max. glass package thickness is 42 mm with thermal transmittance coefficient - Ug = 0,6 W/(m2K).
• For Duoline 78 mm – max. glass package thickness is 48 mm with thermal transmittance coefficient - Ug = 0,5 W/(m2K).
• For Duoline 88 mm – max. glass package thickness is 50 mm with thermal transmittance coefficient - Ug = 0,5 W/(m2K) with three-glass package and Ug = 0,3 W/(m2K) with four-glass package with krypton.

Steel galvanized spacer frame in standard, optionally Swisspacer Ultimate available in various colour options.

Maco Multi Matic KS; Two anti-burglary bolts in standard; window is equipped with sash lifting and handle missplacement blockage*; micro-ventilation in a slot **; optionally hidden hinges. *Depending on the window height **for tilt and turn windows

EPDM and TPE seal in standard.

Uw= 0,79 W/(m2K)* * Coefficient calculated with the application of 4/18/4/18/4 - 0.5 W/(m2K) package for reference window Duoline 88 mm 1230 x 1480 made of meranti wood