Andersen 837 Narroline Sash Balancer

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

Arrived as scheduled. matches original Balancers.

Perfect fit for my old Narroline Window from the 1990s. Instructions were clear. Not too hard to replace if you can get the vertical plastic window track out. Check your windows and the interior trim around your window to make sure the plastic vertical track and top plastic horizontal cover will come out OK. It can be a little tricky to get these plastic pieces out. Check Andersen website for instructions before you attempt the installation. Works very well once installed. I agree with the general recommendation to replace both sides at the same time.

Came quickly. Fit perfectly.

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

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

This and YouTube made the replacement job pretty easy.

Did what I expected it to do

Window is repaired. Best to use the Anderson site to make the right selection and instructions in taking window apart. This one was most helpful for me: [...]

No dislikes,used on window to hold window.