2 part Dosing Barrel

[Mj75]

http://premiumaquatics.com/store/me...ode=PA&Product_Code=BM-1_5L-SC&Category_Code=

Hello. Anyone know the OD of the acrylic tubing used on these containers? And type of connection used on the top?

Thanks.

 

[daido]

http://www.fish-street.com/bubble_magus_calcium_liquid_bucket?category_id=139