Difference between 15-204 and 15-205?

A home owner from Chalfont, PA says:
March 10, 2018
The cover of coil balance for my home is same with Macungie from PA 18062 in this discussion. I am going to purchase it in the near future. Could you please let me know the difference for 15-204 and 15-205? The photo of 15-205 looks like more match to my home window's cover of coil balance.
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Paul from SWISCO responded:
March 14, 2018
Sure! The 15-204 is designed to house 2 coils while the 15-205 is designed to house 3. Otherwise they work with the same hardware.
3/8" Coil Dual Support
3/8" Coil Dual Support
15-204
$1.88
3/8" Egress Coil Triple Support
3/8" Egress Coil Triple Support
15-205
$2.10
How to replace a window coil balance
How to replace a window coil balance
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How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
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Removing a Triple Coil Window Balance
Removing a Triple Coil Window Balance
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