PreciGenome offers holders for air-tight reservoir kits, which allows pressurization of standard lab tubes for microfluidic applications. 
Easy and convenient setup
 
Options:
1.5ml tube
15ml tube
 50ml tube
 
Note: 
 Reservoir adapter and tube are NOT included.
 
 
Please find more information at the website.
https://www.precigenome.com/microfluidic-reservoir