Super-Bands™ polyurethane ring 2-3/4 inch red
Ships from US and is sold by Marco Specialties$4.80
Super-Bands™ polyurethane O-ring, standard 2-3/4 inch Inner
Diameter, red gloss.
Inner diameter is 2.75 inches (69.8mm) and the cross sectional
diameter is standard 3/16 inch (4.7mm).