Lawson Block and Tackle Replacement for Channel Balance

A quick learner from Florida says:
October 22, 2023
I am looking to identify the following lawson block and tackle replacement park. Appears to be 29 inch length, 1/2 inch channel depth. Winged hardware. Stamped 28B Q
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Emily from SWISCO responded:
October 25, 2023

Thanks for reaching out to us. We can help with this but it will have to be a custom order due to the configuration. To outline it for you, we will use a 29" long metal channel that measures 3/8" wide with the 19-044 top and 15-234 shoe as well as the 28B stamp. A pair of balances with this stamp will support a sash weighing 8 to 14 pounds. Can you just tell me how many balances you're looking to order? I can draft a price quote from there. 
A quick learner from Florida says:
October 25, 2023
I will be looking to order 2 of these for the time being. I have other windows that are smaller that I have yet to remove/identify, but I assume the stamp will be a lesser weight.
A quick learner from Florida says:
October 25, 2023
I confirmed the sash weighs 19.4lbs.
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Emily from SWISCO responded:
October 26, 2023

Thank you for confirming! In that case, we'll use the 28C stamp instead for a sash weighing 14 to 20 pounds. I'll email you a purchase link that you can use to place an order on our website. Let me know if you have any questions! 
Channel Balance Shoe, Lawson
Channel Balance Shoe, Lawson
15-234
$1.28
Channel Balance Top, Lawson
Channel Balance Top, Lawson
19-044
$1.27
Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
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