Series 3050 Windows

Side-Load Single Hung, 2 and 3-Lite Sliders and Picture Windows

3050 is our economical single hung and sliding window line. The side-load single hung has a non-tilting bottom sash. Learn more about RELIABILT Series 3050 Single Hung and Series 3050 Sliding Windows on

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  • Series 3050 Side Load Windows in White
    Series 3050 Side Load Windows in White

Standard Features and Available Styles

  • 2 locks offer increased security (2 locks standard at 27-1/4-in width or wider)
  • Easy sash movement with a block & tackle balance System
  • Full-length slim lift rail for smooth operation
  • On sliding windows, tandem rollers ride easily along friction free glide channel
  • Water runs away from house due to sloped sill design
  • Outside air ventilates through installed half screen*
  • Single Hung Design Pressure (DP) 50 rating (window size tested 36-in x 96-in)
  • Jamb depth: 2-5/8-in
Product Close-Up View
Series 3050 Side-Load Single Hung Windows
Product Close-Up View
Series 3050 Slider Windows

Vinyl Color Options



Note: Device/Monitor screen settings may affect color shown. Please refer to actual window sample when selecting colors. Laminates and exterior painted options available on select products, if they are not shown above they are not available on this product. Interior and exterior laminates available on white window only. Only use mild, water based household cleaner on painted product and rinse immediately with water. See full cleaning instructions for details. Grid offering limited to 5/8” contoured or SDL on exterior painted windows.

Grid Types

5/8-Inch Flat Grid

3/4-Inch Flat Grid

5/8-Inch Contoured Grid

1-Inch Contoured Grid

Grid Patterns




Perimeter Prairie


Glass Options

  • Low-E Glass
  • Low-E Glass and argon gas for additional efficiency
  • Ultra Low-E Glass and argon gas
  • Obscure, tempered or double-strength glass

Additional Options

  • Window Opening Control Device (WOCD) to prevent falling from a window (field applied)
  • Factory mulling of twins, triples and architectural shapes
  • Custom sizes available

ReliaBilt Manufacturing Story

Our windows and sliding doors are recognized for their high-quality craftsmanship, innovative engineering and close attention to detail. Learn more about the process used to make them.

Low-E and Argon Gas

Learn how Low-E coatings on glass and argon gas filled between glass panes reduces energy usage and improves the year-round comfort of your home.


Looking for ENERGY STAR qualified products? Learn more about the climate zones and performance criteria used to identify ENERGY STAR compliant windows and doors.

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The RELIABILT Warranty

Every RELIABILT window and patio door is backed by a limited lifetime warranty on vinyl, glass and all working parts. Each product is individually registered with a product identification number, making ordering replacement parts throughout the warranty period easy and efficient.

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RELIABILT Product Care

RELIABILT windows and doors are designed for easy care and maintenance. Click the button below to download RELIABILT’s window and door care and maintenance guide.

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Schedule a free, no-obligation in-home consultation with Lowe's to get RELIABILT windows and doors for your home today.