window closing mechanism

Question

Thank you for your help!
The arm and the base are one piece.
The underside has the number 40055, and the letters LH

Bob · Accepted Answer

Start by looking at our 39-013, which has a straight arm length of 13-1/2". See if this matches what you need; let us know if anything differs. For a handle that works with this operator, see the 39-114L.