Question: what is the difference between andersen 100 series and 400 series?
Answer: 400 Series The Perma-Shield exterior was formulated by Andersen in 1966 to enable wood windows to have tough vinyl exteriors. ... The 400 Series is a popular choice for wood interior windows, and they offer more color options than the 100 Series. They also have trim color options, which the 100 Series does not.