The Infinity Replacement Double Hung, made of Ultrex Fiberglass, is the smart answer to a traditional favorite. You can open it from either the top or the bottom and both sashes tilt in for easy cleaning.  You'll be amazed at its smooth effortless operation.  Available in many styles and options, if your window space is vertically oriented, this is a wonderful option.


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Si Phoenix, LLC

4014 E Broadway Rd,

Suite 408

Phoenix, AZ 85040