- 20 mm Stopper, St Plug (13X20) FKM Blk
20 mm Stopper, St Plug (13X20) FKM Blk
This design provides maximum sealing for vials with straight wall glass finish. The straight wall interior finish is typically found in vials from European manufacturers. This style is not recommended for vials with a blow-back feature, which is a small ridge on the interior of the vial's neck.
|Stopper Style||Straight Plug|
|Stopper Material||Black FKM|
|Mouth ID x OD (mm)||13 x 20|
|Rubber Material||Black FKM|
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