Cheap Patriot Window Sash Spring Assemblies

Which replacement series are you looking at?

Sometimes if the incorrect strength balance is used the life of the window balance will be shortened. It is doubtful though that the manufacture of the window used the wrong strength balance. If you would like to check, remove the window sash in question from the window and weigh it. Respond back here with the weight and we can recommend a balance strength. FYI: the stamp option represents the length and the strength of the balance

Depending on how much the window will be used, manufactures tend to design balances to last about 5 years. Most balances need to replaced within 10 years. Regarding designing better balances... window manufactures design a new type of sash support balance every other year (hence, why there are so many different combinations of replacement balance series).

Which series are your original balances? You did not make this clear in you original post. You wrote that you have a plain 30C and 28B which are not product numbers. Those numbers are stamp numbers. Stamp numbers represent the length and strength of the balance, they do not indicate which series your original balances are.

Remove one of your original balances and match the balance attachment to the product pictures found in the sash support balance catalog. There are three different series to choose from for tilt window plain channel balances. If you need help, take a picture and submit it here for us to determine which series you would need.

There is no way to 'upgrade' to a different series. Window manufactures design a window to only work with a specific balance series.

If you would like to check if you have the correct strength balances in your window, please respond with the size and weight of the window sash.

No, I am sorry you cannot change which balance series is used in your window. Your window was made specifically for one style of sash support balance.

I asked for the weight of your window sash because there is a slight chance that the window manufacture installed incorrect strength balances in your window.

Thank you for posting. Unfortunately I am unsure what lock they used for their 2000 Series. May you provide us with some photos and dimensions to further assist you?