Dowex Marathon MR-3 is a premium, premixed, mixed bed product designed For polishing demineralized water to conductivities <0. 1 uS/cm. Marathon MR-3 is a 1:1 equivalent mixture of Marathon C-10 (H) and Marathon A (OH). It is ready-to-use with minimal rinsing prior to service.

• Model Number: Marathon MR-3
• Physical Form: Whole Un-Cracked Beads
• Ionic Form as Shipped: H+/OH- Form
• Shipping Weight (g/L): 672 (42 lbs/ft³)
• Total Exchange Capacity (eq/L): 1.9 (H+ Form); 1.0 (OH-Form) *
• Uniformity Coefficient: = 1.1 Max*
• Harmonic Mean Size: 760 50 mm (H+ Form); 610 50 (OH-Form)*
• Maximum Operating Temperature: 60C (140F)

*These properties are typical but do not constitute specifications.