Channel Balance Identification

Question

I am looking for the part numbers for these balances and attachments shown in attached pictures, stamped on the rails are 2420 on one and 1820 on the other.

Please let know so I can order.

Thanks
Bill

User submitted photos of a window balance.

Paul · Accepted Answer

Please see our Series 390 channel balance in both cases. I think this is our best match to your hardware. If you also need the top sash guide, see our 18-009.