Searching for PR20251 & PR20190

Thanks for reaching out! I am confident that we can supply you with the replacement balance assemblies you are searching for however, I'll need a bit more information to confirm. The sticker information and brand of the window, unfortunately, will not help to identify the hardware you need.

I'll need to see clear photos of all of the hardware removed from the window. You'll also need to have them removed to confirm the measurements we will provide to you.

Please let me know if you have any questions in the meantime.

Thanks for the photos. Your coil balance pivot shoe looks like our 15-191 Heavy Duty Pivot Shoe. Carefully compare the measurements to your existing pivot shoe to confirm that this is the right fit.

Alternate image for 15-191

The compatible coil spring is the Series 160 Coil. To determine exact which spring is needed for your window, you'll need to obtain the exact weight of your window. Once you have the weight, you'll need to divide it by the total number of coils in the window. This will give you the spring strength needed for each coil.

Your cover appears to be a dual support so I recommend taking a look at the 15-150D Double Coil Support.

Detail of 15-150D

Profile view of 15-150D

Okay great. So it looks like you'll need the S160-9 for your 18lb window. You can use the 15-150S single coil for this instead of the double coil assembly.

Please let me know if there is anything else I can assist with.