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S390-31 31" Series 390 Channel Balance

Im looking for 2 replacements for these. The markings in the picture are the only markings.

only marking is 30-3-j length is 31 inches supports very large aluminum windows all attaching hardware is broken off

Hello, We are selling our condo and have a buyer who has asked us to fix a double hung window (I was not aware of an issue). But came in and saw this piece hanging off. I was able to remove it fairly easily. Looking to find the part and possible insight into how to repair it. There is an ... (cont.)

hi! I would like to identify which replacement part I need to buy. There is a roller that is broken - please see pictures.

Hi, The windows in my apartment do not stay open. The window balance springs seem to have rusted and the top guides have broken. I'm looking for help making sure I get the right parts since there seems to be so many. Window Measurements: 32" Tall x 34" Wide. If I can get some good information, I ... (cont.)

This is a 30" long 1/2 inch balance. It looks most like your S351 except that the long "prongs" on my channel balance shoe are 1 3/16" whereas the length on your S351 is only 1". Also, it is stamped with 3020 which is not an option you provide. The sash only weighs 7.5 lbs so I'm not sure whi ... (cont.)

We are looking for window balancers with these sizes; 3070 bsi 2780 bsi 3970 bsi 2760 bsi Can you Help? Thanks Steve

I have a window balance labeled FA3040, based on the measurements I believe it has a FS100 top shoe and the FS151 bottom shoe. It is 31 inches in length. Is the equivalent model number to order from your website the S351-31. Does that come with the shoes attached or do I need to specify somewhere i ... (cont.)

The part stamp reads 3020. I have no idea what company. The non-tilt windows with this spring balance have it on only one side of the window. The channel balance broke through the top cap. Additional parts needed are the take out clip and sash guide. I presume the channel balance comes with the top ... (cont.)

Trying to repair a couple ancient Nuprime windows in my father's old house, where the channel pieces have decomposed. The channel itself is a 1/2" w aluminum channel which is stamped "3030). The top sash guide (now broken) is stamped "3031". Having trolled your website, I believe that the Top sas ... (cont.)

I am trying to find two replacement channel balances for a non tilt out windows. The stamp reads 30S35.

I have MW windows and need to replace a 31" Channel Balance. The stamp on the channel is 30D. I don"t know what part number the plastic end pieces are. DOes that matted as long as the channel is the right length and the ends look the same.

We have a block and tackle that has a stamp 3030 HD B.S.I. It looks like your S390 but the stop shoe looks different. The top shoe on the bar that we have does not have wings. The top shoe on your S390 is the 19-005 but has wings. Ours does not have wings. Can you help us identift what we need. The ... (cont.)