Nalgene™ PPCO Centrifuge Bottles, 500mL, 13,700 x G, Capacity: 500mL 3120-9500PK Pack of 4 Nalgene™ PPCO Centrifuge Bottles with Sealing Closure, 250mL 3141-0250 Nalgene™ PPCO Centrifuge Bottles with Sealing Closure, 450mL 3141-0500PK 236.00 Pack of 4 Nalgene™ PPCO Centrifuge Bottles with Sealing Closure, 450mL 3141-0500 1,115.00 Case of 24