Quad-Seal Collection

Provides you with a modern contemporary flat exterior look

Ultra Slim Picture Window (F125)

A Picture Window, also referred to as a Slim Fixed, is a non-operable window. Its primary purpose is letting natural light into a room. It features a modern flat exterior look that compliments the quad family of windows. This window is commonly utilized when light or visibility is prioritized over ventilation due to an ultra slim profile providing a larger amount of natural light entering the room. Traditionally, picture windows also serve as transom units.

Quad-Seal Collection

Provides you with a modern contemporary flat exterior look

Ultra Slim Picture Window (F125)

The Ultra Slim Picture Window is a non-operable window designed primarily to bring natural light into a room. It features a modern, flat exterior look that complements the quad family of windows. This window is often chosen when light or visibility is prioritized over ventilation, thanks to its ultra-slim profile that allows a larger amount of natural light into the room. Picture windows also serve as transom units.

Standard Features

  • Our exclusive Quad-Seal System® ensures a superior seal
  • Shadow groove cleaned corners
  • 7/8” insulated thermal dual-seal glass with Quanex Super spacer for optimum efficiency
  • Integrated self-drainage system
  • Interior Heritage glazing with modern co-extruded seal technology for a classic craftsmanship finish
  • Insulated thermal dual-seal glass with Super Spacer for optimum efficiency
  • Multi-chamber design that provides maximum strength to the window as well as a high level of insulation
  • Bright white interior and exterior finished colour
  • 3 1/4″ vinyl frame
  • Sloped outside finish ensures easy outside water drainage

Energy Ratings

Model Brand ENERGY STAR Most Efficient 2020 – 2025 U-factor (W/m² – K) Solar Heat Gain (SHGC) Energy Rating
QLFK-CL-ARG97-DI89-3MM-(0.875) Weather Seal Windows Y 1.41 0.59 43
F125-180ESC-KRY90-180ESC-3MM-7/8OT Weather Seal Windows Y 1.42 0.57 42
QLFK-CL-KRY90-DI89-3MM-(0.875) Weather Seal Windows Y 1.38 0.59 44
QLFK-CL-KRY90-DI89-3MM-(0.875)-GRL Weather Seal Windows Y 1.38 0.53 40
QLFK-180ESC-ARG97-I89-3MM-(0.75) Weather Seal Windows Y 1.32 0.53 42
QLFK-180ESC-ARG97-I89-3MM-(0.875) Weather Seal Windows Y 1.33 0.54 42
QLFK-180ESC-KRY90-CCL-KRY90-180ESC-3MM-(0.875) Weather Seal Windows Y 1.04 0.49 45
QLFK-CL-ARG97-CL-ARG97-DI89-3MM-(0.875) Weather Seal Windows Y 1.35 0.52 40
QLFK-CL-KRY90-CL-KRY90-DI89-3MM-(0.875) Weather Seal Windows Y 1.16 0.53 45
LPWK-366-ARG97-CLR-ARG97-366-3-1.375 Weather Seal Windows Y 0.81 0.21 34
LPWK-366-ARG97-CLR-ARG97-366-3-1.375-GRL Weather Seal Windows Y 0.81 0.19 33
LPWK-CLR-ARG97-CLR-ARG97-DI89-3-1.375 Weather Seal Windows Y 1.05 0.55 49
LPWK-CLR-ARG97-CLR-ARG97-DI89-3-1.375-GRL Weather Seal Windows Y 1.05 0.5 46
LPWK-CLR-KRY90-CLR-KRY90-DI89-3-1.375 Weather Seal Windows Y 1.01 0.55 50
LPWK-CLR-KRY90-CLR-KRY90-DI89-3-1.375-GRL Weather Seal Windows Y 1.01 0.5 47
LPWK-CLR-ARG97-CLR-ARG97-I89-3-1.375 Weather Seal Windows Y 1.34 0.56 43
LPWK-CLR-ARG97-CLR-ARG97-I89-3-1.375-GRL Weather Seal Windows Y 1.34 0.5 40
LPWK-180ESC-ARG97-CLR-ARG97-I89-3-1.375 Weather Seal Windows Y 1.01 0.51 47
LPWK-180ESC-ARG97-CLR-ARG97-I89-3-1.375-GRL Weather Seal Windows Y 1.01 0.46 44
LPWK-180ESC-ARG97-CLR-ARG97-366-3-1.375 Weather Seal Windows Y 0.84 0.33 41
LPWK-180ESC-ARG97-CLR-ARG97-366-3-1.375-GRL Weather Seal Windows Y 0.84 0.3 39
LPWK-CLR-ARG97-DI89-3-0.875 Weather Seal Windows Y 1.35 0.62 46
LPWK-CLR-ARG97-DI89-3-0.875-GRL Weather Seal Windows Y 1.35 0.56 43
LPWK-180ESC-KRY90-I89-3-0.875 Weather Seal Windows Y 1.24 0.56 45
LPWK-180ESC-KRY90-I89-3-0.875-GRL Weather Seal Windows Y 1.24 0.51 42
LPWK-CLR-ARG97-CLR-ARG97-180ESC-3-1.375 Weather Seal Windows Y 1.14 0.55 47
LPWK-CLR-ARG97-CLR-ARG97-180ESC-3-1.375-GRL Weather Seal Windows Y 1.14 0.49 43
LPWK-180ESC-ARG97-CLR-ARG97-180ESC-3-1.375 Weather Seal Windows Y 0.89 0.51 50
LPWK-180ESC-ARG97-CLR-ARG97-180ESC-3-1.375-GRL Weather Seal Windows Y 0.89 0.46 47
LPWK-180ESC-KRY90-CLR-KRY90-180ESC-3-1.375 Weather Seal Windows Y 0.84 0.51 51
LPWK-180ESC-KRY90-CLR-KRY90-180ESC-3-1.375-GRL Weather Seal Windows Y 0.84 0.46 48
LPWK-CLR-ARG97-180ESC-3-0.875 Weather Seal Windows Y 1.56 0.61 41
LPWKLPWK-CLR-ARG97-180ESC-4-0.875 Weather Seal Windows Y 1.54 0.59 40
LPWKLPWK-180ESC-ARG97-180ESC-3-0.875 Weather Seal Windows Y 1.49 0.56 40
LPWK-180ESC-KRY90-180ESC-3-0.875 Weather Seal Windows Y 1.43 0.56 41
F125-180ESC-ARG-DI89-3MM-7/8OT Weather Seal Windows Y 1.25 0.57 46
F125-180ESC-ARG-DI89-3MM-7/8OT-GRL Weather Seal Windows Y 1.25 0.51 42
F125-CLR-ARG-CLR-ARG-180ESC3-3-313/8OT Weather Seal Windows Y 1.14 0.56 47
F125-CLR-ARG-CLR-ARG-180ESC3-3-313/8OT-GRL Weather Seal Windows Y 1.14 0.5 44
F125-180ESC-ARG-CLR-ARG-180ESC-3MM-13/8OT Weather Seal Windows Y 0.91 0.52 50
F125-180ESC-ARG-CLR-ARG-180ESC-3MM-13/8OT-GRL Weather Seal Windows Y 0.91 0.47 47
F125-180ESC-KRY90-CLR-KRY90-180ESC-3MM-13/8OT Weather Seal Windows Y 0.85 0.52 51
F125-180ESC-KRY90-CLR-KRY90-180ESC-3MM-13/8OT-GRL Weather Seal Windows Y 0.85 0.47 49
F125-366-ARG-CLR-ARG-366-3MM-13/8OT Weather Seal Windows Y 0.79 0.21 35
F125-366-ARG-CLR-ARG-366-3MM-13/8OT-GRL Weather Seal Windows Y 0.79 0.19 34
F125-CLR-ARG-DI89-ARG-DI89-3MM-13/8OT Weather Seal Windows Y 0.85 0.53 52
F125-CLR-ARG-DI89-ARG-DI89-3MM-13/8OT-GRL Weather Seal Windows Y 0.85 0.48 49
F125-CLR-KRY90-DI89-KRY90-DI89-3MM-13/8OT Weather Seal Windows Y 0.79 0.53 53
F125-CLR-KRY90-DI89-KRY90-DI89-3MM-13/8OT-GRL Weather Seal Windows Y 0.79 0.48 50
F125-CLR-ARG-DI89-ARG-CLR-3MM-13/8OT Weather Seal Windows Y 0.97 0.55 51
F125-CLR-ARG-DI89-ARG-CLR-3MM-13/8OT-GRL Weather Seal Windows Y 0.97 0.5 48
F125-180ESC-ARG-CLR-ARG-DI89-3MM-13/8OT Weather Seal Windows Y 0.85 0.52 51
F125-180ESC-ARG-CLR-ARG-DI89-3MM-13/8OT-GRL Weather Seal Windows Y 0.85 0.47 49
F125-180ESC-ARG-CLR-ARG-366-3MM-13/8OT Weather Seal Windows Y 0.85 0.33 40
F125-180ESC-ARG-CLR-ARG-366-3MM-13/8OT-GRL Weather Seal Windows Y 0.85 0.3 39
F125-CLR-ARG-180ESC-3MM-7/8OT Weather Seal Windows Y 1.59 0.62 41
F125-180ESC-ARG-180ESC-3MM-7/8OT Weather Seal Windows Y 1.48 0.57 41
F125-CLR-ARG-180ESC-4MM-7/8OT Weather Seal Windows Y 1.53 0.61 42
QLFK-CL-ARG97-DI89-3MM-(0.875)-GRL Weather Seal Windows Y 1.41 0.53 40
WEATHERSEA150A-CL-CG7568-ARG Weather Seal Windows N 1.65 0.57 37
QLFK-CL-ARG97-180ESC-3MM-(0.75) Weather Seal Windows N 1.58 0.58 39
QLFK-CL-ARG97-180ESC-3MM-(0.75)-GRL Weather Seal Windows N 1.58 0.53 36
QLFK-CL-ARG97-180ESC-3MM-(0.875) Weather Seal Windows N 1.6 0.59 39
QLFK-CL-ARG97-180ESC-3MM-(0.875)-GRL Weather Seal Windows N 1.6 0.53 35
QLFK-CL-ARG97-180ESC-4MM-(0.875) Weather Seal Windows N 1.59 0.57 38
QLFK-CL-ARG97-180ESC-4MM-(0.875)-GRL Weather Seal Windows N 1.59 0.51 34
QLFK-180ESC-ARG97-180ESC-3MM-(0.75) Weather Seal Windows N 1.51 0.53 37
QLFK-180ESC-ARG97-180ESC-3MM-(0.75)-GRL Weather Seal Windows N 1.51 0.48 34
QLFK-180ESC-ARG97-180ESC-3MM-(0.875) Weather Seal Windows N 1.54 0.53 37
QLFK-180ESC-ARG97-180ESC-3MM-(0.875)-GRL Weather Seal Windows N 1.54 0.48 34
QLFK-180ESC-ARG97-180ESC-4MM-(0.875) Weather Seal Windows N 1.52 0.52 37
QLFK-180ESC-ARG97-180ESC-4MM-(0.875)-GRL Weather Seal Windows N 1.52 0.47 34
QLFK-180ESC-KRY90-180ESC-3MM-(0.875) Weather Seal Windows N 1.48 0.53 38
QLFK-180ESC-KRY90-180ESC-3MM-(0.875)-GRL Weather Seal Windows N 1.48 0.48 35
QLFK-180ESC-ARG97-I89-3MM-(0.75)-GRL Weather Seal Windows N 1.32 0.48 39
QLFK-180ESC-ARG97-I89-3MM-(0.875)-GRL Weather Seal Windows N 1.33 0.48 38
QLFK-CL-ARG97-CL-ARG97-180ESC-3MM-(0.875) Weather Seal Windows N 1.53 0.52 36
QLFK-180ESC-ARG97-CL-ARG97-180ESC-3MM-(0.875) Weather Seal Windows N 1.31 0.48 39
QLFK-CL-ARG97-CL-ARG97-I89-3MM-(0.875) Weather Seal Windows N 1.56 0.53 36
QLFK-180ESC-ARG97-CL-ARG97-I89-3MM-(0.875) Weather Seal Windows N 1.32 0.48 39
LPWK-CLR-ARG97-CLR-ARG97-366-3-1.375 Weather Seal Windows N 1.06 0.33 36
LPWK-CLR-ARG97-CLR-ARG97-366-3-1.375-GRL Weather Seal Windows N 1.06 0.3 34
LPWK-180ESC-KRY90-180ESC-3-0.875-GRL Weather Seal Windows N 1.43 0.5 38
LPWK-CLR-ARG97-CLR-ARG97-272-3-1.375 Weather Seal Windows N 1.09 0.4 39
LPWK-CLR-ARG97-CLR-ARG97-272-3-1.375-GRL Weather Seal Windows N 1.09 0.37 38
LPWKLPWK-CLR-ARG97-180ESC-3-0.875-GRL Weather Seal Windows N 1.56 0.55 38
LPWKLPWK-CLR-ARG97-180ESC-4-0.875-GRL Weather Seal Windows N 1.54 0.54 37
LPWK-180ESC-ARG97-180ESC-3-0.875-GRL Weather Seal Windows N 1.49 0.5 36
LPWK-180ESC-ARG97-180ESC-4-0.875 Weather Seal Windows N 1.47 0.54 39
LPWK-180ESC-ARG97-180ESC-4-0.875-GRL Weather Seal Windows N 1.47 0.49 36
PW-DG,CLR/LOE180 Weather Seal Windows N 1.58 0.57 38
PW-DG,CLR/LOE180-GRL Weather Seal Windows N 1.63 0.52 34
PW-DG,LOE180/LOE180 Weather Seal Windows N 1.52 0.51 36
PW-TG,LOE180/CLR/LOE180 Weather Seal Windows N 1.5 0.47 34
F125-272-ARG-CLR-ARG-CLR-3MM-13/8OT Weather Seal Windows N 1.14 0.34 35
F125-272-ARG-CLR-ARG-CLR-3MM-13/8OT-GRL Weather Seal Windows N 1.14 0.31 33
F125-CLR-ARG-CLR-ARG-366-3MM-13/8OT Weather Seal Windows N 1.08 0.33 35
F125-CLR-ARG-CLR-ARG-366-3MM-13/8OT-GRL Weather Seal Windows N 1.08 0.3 34
F125-CLR-ARG-180ESC-3MM-7/8OT-GRL Weather Seal Windows N 1.59 0.56 38
F125-180ESC-ARG-180ESC-3MM-7/8OT-GRL Weather Seal Windows N 1.48 0.51 37
F125-CLR-ARG-180ESC-4MM-7/8OT-GRL Weather Seal Windows N 1.53 0.55 38
F125-180ESC-ARG-180ESC-4MM-7/8OT Weather Seal Windows N 1.48 0.55 39
F125-180ESC-ARG-180ESC-4MM-7/8OT-GRL Weather Seal Windows N 1.48 0.5 36
F125-180ESC-KRY90-180ESC-3MM-7/8OT-GRL Weather Seal Windows N 1.42 0.51 38

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    DOUBLE INSULATED GLASS

    Standard Glass: DOUBLE INSULATED GLASS Overall Thickness 7/8″

    TRIPLE INSULATED GLASS

    Optional Glass: TRIPLE INSULATED GLASS Overall Thickness 1 3/8″

     

    Click each logo to learn more about each glass option

    SuperSpacer® 

    Weather Seal uses SuperSpacer for all its manufactured windows, designed  specifically for the North American climate. SuperSpacer, provides the warmest, highest performance glass spacer on the market. SuperSpacer warm edge spacer is made of high-performance silicone material with integrally incorporated desiccant  – which many designers and architects prefer. Even with its aesthetically pleasing narrow sightline, SuperSpacer delivers high wind load resistance, exceptional thermal performance, argon gas retention and long-term durability.
    Watch Video

     
    Standard Exterior Colours

    White
     
    Optional Exterior Colours

    Sandalwood

    Commercial Brown

    Black
     
    Available Custom Colours

    Flat 5/16″

     

    Flat 5/8″

     

    Flat 1″

     

    Pencil 3/8″

     

    7/8″ Contour Flat SDL

     

    1 1/4″ Contour Flat SDL

     

    2″ Contour Flat SDL

     

    Georgian 3/4″

     

    Georgian 1″

     
     
    Wood Jamb Extensions

    Wood Jamb Extensions

    Vinyl Jamb Extensions

    Vinyl Jamb Extensions

    Casing & Rosettes
    2 3/8″ Casing with Round Rosette
    3 3/8″Casing with Round Rosette
    3 3/8″ Casing with Straight Rosette
    3 3/8″ Flat Casing with Flat Rosette
    Flat Keystone
    Colonial Keystone
    Brickmoulds
    1/8″ Brickmould
    3/8″ Bull Nose
    3/4″ Brickmould
    1 1/4″ Brickmould with Nailing Fin
    1 1/4″ Brickmould
    1 1/2″ Brickmould
    2″ Brickmould
    1 1/4″ Brickmould with 2″ Slopped Sill
    1 1/2″ Brickmould with 2″ Slopped Sill
    2″ Brickmould with 7/8″ Slopped Sill