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A cracked or missing window knob turns a simple task into a hassle every time you want to crank a window open or closed. The JR Products 20165 is a tri-lug replacement knob built to fit a 9/16" shaft, matching the hardware found on many RV and trailer windows.
It's molded from alloy and finished in white, so it fits in visually with most window frames and interior trim without standing out.
Keep it in the parts bin for the day a window knob snaps off or goes missing on a trip — it's a quick, inexpensive fix.
