ID Channel Balance

Question

I am looking for some help identifying my block and tackle for a window.

The weight of the window is 36lbs.

Stamp on the current block and tackle is 28F

I want to make sure I am ordering the correct one from your website.

28" Series 380 Channel Balance option 2765

Bob · Accepted Answer

Hello there. I agree, this looks like it might be a Series 380 Channel Balance, but make sure the depth (or heel-to-toe measurement) of the bottom nylon shoe is 1". See the image below for reference. Let us know if your shoe's depth is lesser or greater than this.

Comparison of the S378, S380 and S385 balance shoes.

Is the metal channel, not including the nylon attachments, 28" long? Please confirm. If so, and if the window sash weighs exactly 36 pounds, then yes, the 2765 stamp option is correct. Let me know if you have further questions!