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Argon Gas Insulated

Screen Included

Tiltable Sash

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United Window & Door PRO Series 31-3/4-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)

Name: United Window & Door PRO Series 31-3/4-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)
Brand: United Window & Door
SKU: 5010604503
Rating: 4.5 (102 reviews)

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4.5

102

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Actual Size (W x H): 31-3/4-in x 37-1/2-in

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United windows deliver long-lasting durability, everyday convenience, and timeless value. Made from Brilliance™ solid vinyl that never peels, cracks, or warps, they’re built to stand up to the elements with virtually no maintenance. Designed for comfort, energy-efficient Low-E, Argon-filled glass helps keep your home comfortable year-round while reducing energy costs. Easy-to-clean tilt-in sashes and smooth, corrosion-resistant operation make everyday use effortless. With superior weather resistance, integrated security features, and a lifetime, non-prorated warranty, these USA-made windows deliver peace of mind, style, and value season after season. Exclusively at Lowe’s.

Replacement window comprised of Brilliance our beautiful and extremely durable solid white vinyl; Will never peel, warp, blister or flake
Low-E and Argon gas filled double pane glass keeps homes cooler in the summer and warmer in the winter
Fully welded frame and sashes; Both top and bottom sashes open for ventilation and tilt in for easy cleaning; Modern sash design maximizes visibility
Brilliance™ white vinyl exterior, Brilliance white vinyl interior
Corrosion resistant, Teflon coated, stainless steel constant force balance system allows for smooth and effortless operation
A weather-tight true sloped sill repels water better than less advanced drainage systems
Nite locks provide added security to your home by preventing windows from being opened more than 2 inches
Half screen made of a dark fiberglass mesh, allows for ventilation and maximizes visibility while keeping insects out
Manufactured exclusively for Lowe's, proudly made in the USA and backed by a Lifetime, non-prorated warranty

Dimensions
Common Size (W x H)	32-in x 38-in	Rough Opening Size (W x H)	32-in x 38-in
Jamb Depth Measurement	3-1/4-in	Weight (lbs.)	36
Actual Size (W x H)	31-3/4-in x 37-1/2-in

Glass Features
Impact Resistant	No	High Altitude Rated	No
Lock Type	Cam	Design Pressure (DP) Rating	40
Glass Insulation	Low-E argon	Solar Heat Gain Coefficient (SHGC)	.3
Argon Gas Insulated	Yes	Glazing Type	Double pane
Glass Strength	Single strength	U Value	.3
Obscure Glass	No

General
Series Name	PRO Series	Exterior Color/Finish	White
Color/Finish Family	White	Hardware Color/Finish	White
Lowe's Exclusive	Yes	Screen Type	Fiberglass mesh
Interior Color/Finish	White	Tilt Mechanism	Flush
Project Type	Replacement

Features
Grid Included	No	Frame Profile	Brick mould
Frame Material	Vinyl	Screen Frame Type	Roll-form
Paintable	No	Wood Jamb Extension	None
Screen Included	Half	Balance System	Constant force
Tilting	Yes	Number of Locks	2

Warranty
Warranty	Limited lifetime

Certifications
CA Residents: Prop 65 Warning(s)	No	Florida Product Approved	No
Meets CA Forced Entry Requirements	No	Texas Department of Insurance Approved	No
ENERGY STAR Certified South/Central Zone	No	Sound Transmission Control (STC) Rated	No
ENERGY STAR Certified Southern Zone	No	Hurricane Approved	No
ENERGY STAR Certified Northern Zone	No	Miami Dade Approved	No
ENERGY STAR Certified North/Central Zone	No

Miscellaneous
UNSPSC	30171600

Check out the Best Selling Double Hung Windows on Lowes.com

Review

4.5 out of 5

102 Reviews

86% Recommend this product

Ratings may include incentivized customer reviews.

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What Customers Are Saying

Customers overwhelmingly praise these windows for straightforward installation, solid vinyl construction, and attractive appearance. Most highlight how effortlessly they fit existing frames, operate smoothly, and enhance home aesthetics, often completing replacements in hours. Reviewers note the windows include all necessary components and deliver reliable performance with good seals. A small number report isolated quality control issues like uneven glass sealing or misaligned screens, though these concerns represent a minor fraction of feedback and do not diminish widespread satisfaction with ease of use and overall value.

Customer review summary generated by AI, including incentivized reviews.

102 Customer Reviews

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Nice quality

Would Recommend

Very good window and easy to put in

Rob1July 3, 2026
From PRO Series 35-3_SLASH_4-in x 37-1_SLASH_2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included) Verified Purchaser

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Game changer

Would Recommend

These windows are so nice and budget friendly! Replacing my older windows and this has been a game changer!

LindaJune 22, 2026
From PRO Series 35-3_SLASH_4-in x 37-1_SLASH_2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included) Verified Purchaser

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Cheaply Made !

Would Not Recommend

I'm reading many of these reviews and 95% are related to .. Oh what an easy install .. Great fit and on and on. To tell you the truth ..these are the Cheapest Made windows that I've purchased over the years and will not be purchasing from this window company no longer.

Ed55June 19, 2026
From PRO Series 31-3_SLASH_4-in x 53-1_SLASH_2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)

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Great Window

Would Recommend

Excellent window, easy to install, looking forward to putting more in.

Art DogJune 14, 2026
From PRO Series 35-3_SLASH_4-in x 37-1_SLASH_2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included) Verified Purchaser

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I'm going to refrain the house to fit the windows

It's in the window was in their thoughts like

1961May 23, 2026
From PRO Series 35-3_SLASH_4-in x 37-1_SLASH_2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included) Verified Purchaser

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Windows

Would Recommend

They fit perfectly in my window !

SunshineMay 17, 2026
From PRO Series 23-3_SLASH_4-in x 37-1_SLASH_2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included) Verified Purchaser

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29 Questions

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United Window & Door: Featured Videos

COMPARE PRODUCTS

		Name	Current Item United Window & DoorPRO Series 31-3/4-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)
		Ratings	102
		Actual Size (W x H)	31-3/4-in x 37-1/2-in
		ENERGY STAR Certified North/Central Zone
		Frame Material	Vinyl
United Window & DoorPRO Series 31-3/4-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)	Pella150 Series 31-1/2-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Full Screen Included)	United Window & DoorPRO Series 31-3/4-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)	JELD-WENV-2500 29-1/2-in x 40-in White Exterior White Interior Vinyl New Construction Double Pane Glass Low-E Argon Double Hung Window (Full Screen Included)	RELIABILT3201 Series 31-3/4-in x 53-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)	United Window & DoorPRO Series 35-3/4-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)	RELIABILT3201 Series 35-3/4-in x 53-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)	RELIABILT3201 Series 31-3/4-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)	Pella150 Series 27-1/2-in x 45-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Full Screen Included)
53	171	44	7	135	53	135	135	171
31-3/4-in x 37-1/2-in	31-1/2-in x 37-1/2-in	31-3/4-in x 37-1/2-in	29-1/2-in x 40-in	31-3/4-in x 53-1/2-in	35-3/4-in x 37-1/2-in	35-3/4-in x 53-1/2-in	31-3/4-in x 37-1/2-in	27-1/2-in x 45-1/2-in

Vinyl	Vinyl	Vinyl	Vinyl	Vinyl	Vinyl	Vinyl	Vinyl	Vinyl

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United Window & Door PRO Series 31-3/4-in x 37-1/2-in White Exterior White Interior Vinyl Replacement Double Pane Glass Low-E Argon Double Hung Window (Half Screen Included)

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