Chemglass CLS-1705-20X2 20.0 x 2.00 Orange Silicone O-Ring PK20 NIB
This is aChemglass CLS-1705-20X2 20.0 x 2.00 Orange Silicone O-Ring PK20 NIB. This is my item R110B1S1 N/D 3189 Chemglass Box. Orange silicone o-rings conform to FDA 21CRF Part 177.2600.