Lowe's Home Improvement
FREE PARCEL SHIPPING on Qualifying Orders
Previous Next
Zoom Out Zoom In

ThermaStar by Pella 27.75-in x 44.75-in 20 Series Vinyl Double Pane Annealed Replacement Double Hung Window

  • ThermaStar by Pella 27.75-in x 44.75-in 20 Series Vinyl Double Pane Annealed Replacement Double Hung Window

Only at Lowe's

ThermaStar by Pella 27.75-in x 44.75-in 20 Series Vinyl Double Pane Annealed Replacement Double Hung Window

Item #: 318550 |  Model #: 748171605845

5 / 5 1 Reviews

27.75-in x 44.75-in 20 Series Vinyl Double Pane Annealed Replacement Double Hung Window

  • Advanced Low-E energy-saving glass
  • Argon gas is inserted between the 2 panes of glass for added energy efficiency
  • Maintenance-free vinyl frames
  • Both sashes tilt for easy cleaning of exterior glass from inside your home
  • Custom sizes and color-matched grilles are also available via special order
  • For more product details refer to the specifications tab
Actual Height (Inches) 44.5
Actual Width (Inches) 27.5
Rough Opening Width (Inches) 27.75
Rough Opening Height (Inches) 44.75
Jamb Depth (Inches) 3.25
Series 20
Interior Color/Finish White
Exterior Color/Finish White
Hardware Color/Finish White
Paintable No
Color/Finish Family White
Frame Material Vinyl
Includes Grid No
Grid Type N/A
Grid Width N/A
Grid Profile N/A
Grid Pattern N/A
Glazing Type Double pane
Argon Gas Insulated Yes
Glass Strength Annealed
Obscure Glass No
Frame Profile Beveled
Screen Included Full
Screen Type Fiberglass mesh
Screen Frame Type Roll-form
Balance System Block and tackle
Tilting Yes
Warranty Limited lifetime
Lowe's Exclusive Yes
Project Type Replacement
Meets Egress Requirement No
Lock Type Cam
Nail Fin N/A
J Channel N/A
Mulling N/A
Wood Jamb Extension None
Number of Locks 2
Ventilation Latches Double
Tilt Mechanism Flush
High Altitude Rated No
Hurricane Approved No
Miami Dade Approved No
Sound Transmission Control (STC) Rated Yes
Florida Product Approved Yes
Design Pressure (DP) Rating 35.0
Texas Department of Insurance Approved Yes
U Value 0.3
Solar Heat Gain Coefficient (SHGC) 0.28
ENERGY STAR Qualified Northern Zone Yes
ENERGY STAR Qualified North/Central Zone Yes
ENERGY STAR Qualified South/Central Zone Yes
ENERGY STAR Qualified Southern Zone No
Iris Technology No
Community Q&A
  • Save Item
    Save Item Help
    Save an item to your
    • Lists to collect ideas and plan future projects.
    • Home Profile to organize and store details about your home.
  • Set a Reminder Save Item Help

    Set a Reminder and we'll send you an email when it's time to stock up on items you buy regularly or seasonally, like air filters, fertilizer or mulch. Use notes to record details (quantity, gift recipient, etc.).

  • Go to Your Account