• This unique dosing system allows two products to be dosed at the same time at completely different dosing ratios.
• Only one flow sensor needs to be fitted.
• This doser can also be used to double the pumped output of a Select-640 single headed pump. BUT, remember, if you are dosing 1:500 overall from the Select-648, each side has to be set at 1:1,000. It's just the way the arithmetic works.

Technical Specifications

• Maximum water line pressure 2 bar (28psi)
• Each side can pump at 30 l/hr of dosed product.