Paul from SWISCO responded:
November 13, 2014
Good morning! If your window sash weighs 31 pounds, then I do not think the 21E option will be strong enough. I recommend a 21G option, which will have to be custom made. Two S795-21 balances with a 21G option can carry a window sash weight of 30 through 34 pounds.
To get started, check out this Custom Channel Balance Request Form I've started for you based on your specifications and fill out the blank fields. One of our representatives will get back to you with a price quote and an item to add to your cart. |