Currently it has:
- 2340 with a non winged bottom
- 2240 with a winged bottom
But the window weighs 18 pounds and from what I've measured fits a 25" balance. Therefore I believe it should use a 2430. Any tips on what part to replace with? My best guess is either S395-25 or S385-25 but I'm new to this. Thank you for your time!