Andersen 837 Narroline Sash Balancer

Perfect easy installation, Windows work great

The original balancer failed after 25 years. Searched and found out what I needed and how to replace it. Ordered and had it in 2 days. Followed the instructions to install it and its like brand new.

Arrived as scheduled. matches original Balancers.

it came on time and worked perfectly.

Very good quality. Easier to install with a little help, but can be a one man job. Looks like original equipment from Andersen.

Was exactly what I needed and works perfect

It is quite an ordeal to replace one. Im handy and I may hire someone if I need to replace another.

Our window ropes broke and needed repaired. The sash balancer did the trick. T

Product as described. Fit as it should. Came nicely packaged.

Well packaged, clean, and exact replacement part for Andersen double hung window