Porter-lite Vinyl Series 400, MFG. by Krestmark*
The Porter-lite Series 400 MFG by Krestmark is used primarily as a new construction window but should not be ruled out as remodel or replacement option in certain applications. The design shows clean trim lines similar to those of much more expensive wood clad windows and includes integral nail fin.

Available as Single Hung, Single Vent Slider, Picture Windows and Architectural Shapes. Call out size is ½” larger than window size; a  2030 actual size is 23 ½ ” x 35 ½”. Not available in custom sizes.

*Covered by one or more US Patents: D608,906; D608,908; D608,908; D608,909; D608,910; D608,911


Vinyl 400







  • Colors: White, Pebblestone, and Clay.
  • Multi-chambered extruded vinyl frame and sash provides stability with excellent
    strength, thermal resistant properties and is extremely low maintenance. Vinyl
    extrusions have superior sound absorption and continuous color throughout minimizing
    unsightly scratches.
  • Fusion Welded corners in frame and sash provides strength and virtually eliminates air
    and water infiltration.
  • Pocket Sill for reduced air infiltration with weep system.
  • Integral pre-punched nail fin adds strength, is a weather tight barrier and ease of
  • Dual weatherstrip system reduces all weather and air infiltration to meet or exceed
    National testing standards.
  • Dual pane 5/8” clear insulated glass with Duralite® Spacer.
  • Tilt-in removable bottom sash for ease of cleaning has dual sash locks on units 18” and
    wider reducing air infiltration, recessed tilt latches, two integral lift rails adds strength
    and for easy convenient operation.
  • Metal reinforced meeting and lock rail for added strength, positive locking and reduces
    air infiltration.
  • Block & tackle balances provide smooth operation, locking shoes prevent sash from
    falling out when tilting for cleaning or removal.
  • Combination units are made with continuous head and sill provides added structural
    stability and strength during installation.
  • Certifications of all products tested are done to meet or exceed national testing
    standards by NFRC and AAMA. Energy Star® partner. Florida approval.

Other Options

  • Glazing:
    - Argon enhanced glass improves energy efficiency
    - 3/4" dual insulated
    - LoE E66 is a clear coating with highest levels of solar control
    - Tempered, Obscure, Bronze or Grey glass
  • Grilles:
    - 5/8” Colonial, Prairie, 1”Contoured, 1 1/8” Simulated Divided Lite
  • Factory mulled or stacked units and field mull accessories
  • Shapes available: half rounds, quarter rounds, circles, octagons, trapezoids and other
    Styles. click here to see Special Shapes.
  • Impact for coastal areas or added security see Series 4000




Size Chart (.pdf)

Dimensions 400 Series (.pdf)

U-Factor & SHGC Info (.pdf)

Installation Instructions (.pdf)

Finless Installation Instructions (.pdf)

Field Mulling Instructions (.pdf)

Mulling Oversize Units (.pdf)

Warranty (.pdf)

Brochure (.pdf)

Glass Cleaning Requirements (.pdf)

Krestmark AAMA Performance Data (.pdf)
see "400 Series"


Note: All picture windows, shapes and one-frame glass larger than 30 square feet will come with Tempered Glass as standard for safety reasons. All additional charges for Tempered Glass will automatically be applied.







        Krestmark Industries ©2010      








Krestmark Home