O-rings are one of the simplest, yet most engineered, precise, and useful seal designs ever developed. They are available in various metric and inch
Danco #83 0-Ring 10/Cd 96711 - Faucet O Rings
DANCO #14 O-Ring (10-Pack) 96731 - The Home Depot
DANCO #35 O-Ring (10-Pack) 96749 - The Home Depot
DANCO 200-Piece O-Ring Kit 34443 - The Home Depot
Danco 96745 #31 Rubber Faucet O-Rings, 10-Pack
Danco 96727#10 Rubber Faucet O-Rings, 10-Pack, Faucet O-Rings
DANCO #30 O-Ring (10-Pack) 96744 - The Home Depot
Danco 3/4 in. OD x 9/16 in. ID, Rubber, 11 O-Ring, 10 per Card
DANCO 9/16 IN. OD x 7/16 in. ID, Rubber, #41 O-Ring, 20 per bag
DANCO #7 O-Ring (10-Pack) 96724 - The Home Depot
Danco 96727#10 Rubber Faucet O-Rings, 10-Pack, Faucet O-Rings
Danco 1-1/16 in. OD x 7/8 in. ID, Rubber, #17 O-Ring, 10 per Card
DANCO #17 O-Ring (10-Pack) 96734 - The Home Depot