Dynalon Film Lab Chemical Storage Air Exclusion Bottle Made in England[BDLT]
Dynalon 1 litre Air Evacuation Bottle is an opaque plastic container used to store light- and air-sensitive chemistry. Its accordion design can be compressed to remove excess air, thereby preventing chemical oxidation in order to extend the storage life of the chemistry.
It is very sturdy and has a perfectly flat wide lip on the neck for perfect sealing.
It also compresses more than many other bottles on the market.