Internal check valves allow flow and filtration in either direction. The BFK filter-drier is UL listed for 680 psig maximum working pressure for all sizes through 30 cubic inches. These sizes are suitable for use with R410A.

• Desiccant blend-75% molecular sieve and 25% activated alumina
• Ratings are flow capacity R22, 1 psi ?P, 86°F liquid temperature, 5°F saturated vapor temperature, 2.9 lb./min./tons of refrigeration
  (ARI Standard 710-86)