PVA Foam Stoppers

 

Whilst nothing beats the old-school classic "Test tube" setup, these funky blue PVA Foam Stoppers are a great twist to provide a humidity gradient within your tube.

 

Additionally, due to the material of these, mold tends to grow at a much slower rate than on cotton fibres.

 

In order to use effectively, allow to soak in warm water for 1-2 mins before using. 

 

Specifications

 

Colour: Blue

 

Size: Fits all tubes with diameters of 15 & 16mm.

PVA Foam Stoppers

£2.99Price
Multipack

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