Request for Information - Replacement for 2 window balancers

Thanks for contacting SWISCO. If both of these balances are from the same window, they should have the same stamp. If the window sash weighs 17 lbs, then 14D is definitely the better option. The original installers were probably short on materials and worked with what they have. Based on the information you've provided, give the S795-14 with a 14D Stamp Option a look. Compare with your old parts and see what you think. 

Greetings. The open cam is for different assembly configuration. Your old bottom T-Lock shoe has a closed cam, so you can use our standard 15-195 closed metal cam , the 1-1/4" wide T-Lock shoe that comes already assembled with S795-14.