Help with identifying a correct spiral balance

Hi,

My father is installing 2 windows and somehow managed to misplace the spiral balances. I was hoping you could help me identify the right ones to use as a replacement. The fittings (on the photos) suggest a spiral balance with 4 rods at the end, similar to the ones on your website for the tilting windows. I am sure that the windows do not tilt, except during assembly/disassembly, hence I am a bit confused with all the different spiral balance options and was hoping you could help me with identifying the right ones.

The length I believe should be 26" (that is the measurement of the one half of frame, the upper part), the depth of the canal inside the frame is just under an inch (20 mm), which will suggest a diameter of the balance of 5/8" and the weight of the moving part of the window is 28.6 lbs (13 kg), which is very close to the limit of the series 600 26" red tip balance.

Also, he lives in Latvia, would it be possible to arrange a delivery of 4 of the spiral balances there?

Thank you in advance.

Thank you, that's great. I thought this would work too, thank you for confirming.

Could you please let me know how much the delivery to Latvia will cost? I will need to order 4 of S600-26.