Ceramic Element Bushing for Vcella, Cress, and other Furnaces. Use when the element passes through a hole in the brick to avoid abrading the hole and making it larger (which will cause premature element failure).
Sold by the individual bushing.
Approximate dimensions:
Overall length: 1.1 inch
Head diameter: 0.88 inch
Head thickness: 0.28 inch
Tube ID: 0.18 inch
Tube OD: 0.48