One window is 16 pounds and has the hardware shown in the first two photos. The number on the coil is 540.
Three windows are 11 pounds and have the hardware of the last three photos. The number on the coil is c5.
Should I put in two new coils per shoe? The shoe in the first photo had a coil screwed into each side, one of which was broken. The shoe in the fourth photo had only one coil screwed into it, and it seems to have broken relatively quickly - I don't know if it was done correctly before. So I'm not sure how many coils are appropriate - I just want to order them and have a handyman replace them. Thanks!
