
Compare our product series.
Every series is fusion welded, custom made to fit your openings and backed by our Lifetime Limited Warranty. Here’s how they differ.
100 Series
Efficiently beautiful.
The Harmony 100 Series double hung is designed to enhance your home’s appearance while increasing its comfort. A welded contour master frame offers a traditional wood-window look.

Engineered features
- Fusion-welded 3-1/4″ deep frame and sash
- Contour exterior for a wood-window appearance
- 5° positive sloped sill
- Constant force balance system
- Soft-curved sash and integral lift rail
- Dual tilt-in sashes with recessed latches
- 3/4″ insulating glass with warm-edge spacer
- Night vent latch
Colors
Crème White · Optional Tan
Energy performance
| Glass | U-Factor | SHGC | VT | Air |
|---|---|---|---|---|
| Low-E | .28 | .28 | .52 | < 0.3 |
| Low-E (alt.) | .28 | .22 | .49 | < 0.3 |
| UltraFlect | .24 | .20 | .45 | < 0.3 |
Whole-window values from the 100 Series brochure. Ask to see the NFRC rating sticker — and compare.
Solstice 200 Series
Give your home a unique appearance.
State-of-the-art design in window systems — and our newest replacement line, with Low-E glass standard and fiberglass insulation in the frame and sash.

Engineered features
- Fusion-welded 3-1/4″ deep frame
- Fiberglass insulation in frame and sash
- Standard Low-E 3/4″ insulating glass
- Two layers of weatherstripping with double mylar fins
- Stainless steel constant force balance
- Rigid thermal reinforcement
- Equal-lite sashes for a wood-window look
- Optional Dual Tech hidden lock; optional nailing fin for new construction
Colors
Crème White · Desert Tan · Bronze or Black exterior · 10 paint colors + custom
Energy performance
| Glass | U-Factor | SHGC | VT | Air |
|---|---|---|---|---|
| Low-E | .27 | .29 | .55 | < 0.3 |
| Low-E (alt.) | .26 | .21 | .51 | < 0.3 |
| UltraFlect | .22 | .20 | .45 | < 0.3 |
| Triple glaze (R-5) | .20 | .16 | .33 | < 0.3 |
Whole-window values from the Solstice 200 Series brochure. Ask to see the NFRC rating sticker — and compare.
300 Series
Appreciate all the comforts of home.
Premium casement, awning and hopper windows with a multi-point self-locking system and DP-50 structural performance — plus our 300 Series sliding patio door.

Engineered features
- Solid virgin PVC construction
- Fusion-welded frame and sash/vent
- 3-1/4″ frame depth
- Standard multi-point self-locking system
- 7/8″ insulated glass (casement), 3/4″ (hopper)
- Extruded aluminum screens
- DP-50 structural performance
- For new construction and replacement
Colors
Crème White · Desert Tan · Bronze/Black exterior · Oak or Cherry interior woodgrain
Energy performance
| Glass | U-Factor | SHGC | VT | Air |
|---|---|---|---|---|
| Low-E | .25 | .27 | .51 | < 0.3 |
| Low-E (alt.) | .25 | .20 | .48 | < 0.3 |
| UltraFlect | .22 | .19 | .42 | < 0.3 |
Whole-window values from the 300 Series brochure. Ask to see the NFRC rating sticker — and compare.
Pro-Tech 400 Series
Setting the standard in windows.
More than thirty years of research and development in every fully welded Pro-Tech 400 window. Compound shapes are fusion welded at the sill corners — stronger than conventional welded windows.

Engineered features
- Heavy-walled, fusion-welded 3-1/4″ frame
- 7/8″ insulating glass
- Three layers of weatherstripping
- Storm interlock prevents sash bowing under stress
- Flexible bulb seal — like a refrigerator door
- Fully welded double-wall interior dam leg
- Fiberglass insulation in frame and sash
- Low-profile routered tilt latches
Colors
Crème White · Desert Tan · Bronze/Black exterior · Oak or Cherry interior
Energy performance
| Glass | U-Factor | SHGC | VT | Air |
|---|---|---|---|---|
| Low-E | .27 | .25 | .45 | < 0.3 |
| Low-E (alt.) | .27 | .19 | .43 | < 0.3 |
| UltraFlect (R-5) | .22 | .18 | .39 | < 0.3 |
| Triple glaze (R-5) | .18 | .15 | .32 | < 0.3 |
Whole-window values from the Pro-Tech 400 Series brochure. Ask to see the NFRC rating sticker — and compare.
500 Series
Eighteen features you can expect.
Heavy wall extrusions, a magnetic weather seal and a clean interior millwork appearance with no unsightly thumb buttons. Meets DP-55 up to 54″ × 72″.

Engineered features
- Heavy wall extrusion
- Fusion-welded 3-1/4″ frame
- Dual Tech hidden lock system
- Magnetic seal for superior weather resistance
- Storm interlock
- Three layers of weatherstripping
- Duralite® warm-edge spacer
- Clean millwork interior — equal sightlines
Colors
Crème White · Desert Tan · Bronze/Black exterior · Oak or Cherry interior
Energy performance
| Glass | U-Factor | SHGC | VT | Air |
|---|---|---|---|---|
| Low-E | .27 | .25 | .45 | < 0.3 |
| Low-E (alt.) | .27 | .19 | — | < 0.3 |
| Triple glaze (R-5) | .18 | .15 | .32 | < 0.3 |
Whole-window values from the 500 Series brochure. Ask to see the NFRC rating sticker — and compare.
600 & 650 Coastal Series
Pioneering vinyl window technology.
The 600 Series brings every feature of the 500 with a heavy-duty lock system and standard full screen. The 650 Coastal line was designed specifically to meet the Florida Building Code and other coastal codes.

Engineered features
- Impact-resistant rated features (650)
- Designed for hurricane-force wind zones (650)
- DP-55 up to 54″ × 72″
- Heavy-duty lock system
- Storm interlock and double-wall dam leg
- Standard FlexScreen full screen
- Optional UltraFlect R-5 dual Low-E
- Fiberglass insulation in frame and sash
Colors
Crème White · Desert Tan · Bronze/Black exterior
Energy performance
| Glass | U-Factor | SHGC | VT | Air |
|---|---|---|---|---|
| Low-E | .26 | .18 | .43 | < 0.3 |
Whole-window values from the 600 & 650 Coastal Series brochure. Ask to see the NFRC rating sticker — and compare.
Series comparison
| Series | Styles | Glass | Structure | Best for |
|---|---|---|---|---|
| Harmony 100 | Double hung, slider, picture, patio | 3/4″ | — | Value replacement |
| Solstice 200 | All window styles + patio door | 3/4″ Low-E std. | Fiberglass-insulated | Best-selling replacement |
| 300 Casement/PD | Casement, awning, hopper, patio door | 7/8″ | DP-50 | Crank-out & doors |
| Pro-Tech 400 | All styles + bay/bow + patio | 7/8″ | Storm interlock, bulb seal | Premium replacement |
| 500 | All styles + bay/bow + patio | Low-E + R-5 option | DP-55, magnetic seal | High performance |
| 600 / 650 | All styles; 650 coastal impact | Low-E + R-5 option | DP-55, FL Building Code (650) | Coastal & premium |

Legacy Bay & Bow Series
Solid wood mullions, real oak interior trim, CNC-precision frames and an R-7 insulated seat board.

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