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About product and suppliers:
        Alibaba.com offers 2,734 refill flask products. About 82% of these are vacuum flasks & thermoses, 3% are water bottles, and 1% are hip flasks. 

A wide variety of refill flask options are available to you, such as free samples, paid samples. 

There are 2,734 refill flask suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of refill flask respectively. 

Refill flask products are most popular in Africa, Mid East, and Southeast Asia. 

You can ensure product safety by selecting from certified suppliers, including 734 with ISO9001, 423 with Other, and 140 with ISO14001 certification.