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• Remember to mark which type of cap you want with the holder (Isopynic - 10mm, Rate Zonal - 4mm, or both).
• To order caps separately, click the "Caps Only" button to the right of the rotor of your choice.

Tube Holders & Caps

Caps Cat. # Tube Size Beckman Dupont Hitachi Qty. Isopynic Rate Zonal Both Caps Only 105-911A 11 x 60 mm; (7/16 x 2 3/8 in) SW60Ti TST-60.4 RPS56T 105-911B 11 x 34 mm; (7/16 x 1 3/8 in) TLS-55 N/A RP55S 105-913 13 x 51 mm; (1/2 x 2 in) SW50.1; SW65Ti; SW55Ti AH-650 RPS65T; RPS55T-2; RPS50 105-914A 14 x 89 mm; (9/16 x 3 1/2in) SW41 TH-641 N/A 105-914B 14 x 95 mm; (9/16 x 3 3/4 in) SW40 N/A RPS40T 105-916 16 x 102 mm; (5/8 x 4 in) SW27.1; SW28.1 AH-629/17 SRP28SA; RPS27-3 105-925 25 x 89 mm; (1 x 3 1/2 in) SW27; SW28 AH-629/38 SRP28SA; RPS27; RPS27-2