CRL FA2340 24" Window Channel Balance - 2340 or 23-4
Stamped Number 2340 or 23-4. Number Stamped on Channel 2340 or 23-4. Each CRLFA Series 4/40 and 5/50 Weight Range Sash Balances requires one of several types of nylon guides to be riveted onto the top and bottom of the channel.