Interstate Glass, a division of Manko Window

Systems, brings you a complete line of vinyl

window and patio door products. The V301

Premium Vinyl Window Series is carefully

crafted with the homeowners desires in

mind. To ensure high performance and

comfort, these windows are built with a

thermally fused master frame and sash and

paired with energy efficient dual pane

insulated glass. The rigid vinyl construction

ensures maximum strength and long lasting

durability. Finally, the V301 Series is

structurally glazed with removable stops to

prevent the infiltration of air, water and

noise, keeping the outside elements out.

v301 Fixed ▪ Single Hung

Single Slider

Features:

New construction (w/nail fin) or replacement

2 7/8” thermally fused master frame and sash

Maintenance Free extruded multi-chambered vinyl

Fully integrated white or sandstone vinyl finish

Attractive master frame and sash

Operating sash includes dual weather stripping

3/4” insulated glass using upgraded 1/8” thick glass

Energy efficient triple silver low-e glass and argon gas fill

Upgraded aluminum screen for added durability and

improved optical clarity

Vinyl Window Series

Double

Perimeter

Perimeter Prairie Double

Prairie

Colonial

Grid Patterns

Just a few of the many custom

configurations available to fit

the needs of your home

Custom Configurations

Design & Performance

Climate

Zone

U-

Factor SHGC

Northern ≤ 0.27 Any

North

Central ≤ 0.30 ≤ 0.40

South

Central ≤ 0.30 ≤ 0.25

Southern ≤ 0.40 ≤ 0.25

Energy Star

Requirements

Type U-

Factor SHGC

Fixed 0.23 0.20

Single

Hung 0.25 0.19

Single

Slider 0.24 0.19

*Glass: SB70 #2 / Arg / CS73 #3

Interstate Glass

V301 Test Results