--- title: BF Breathers High Flow Particulate Breathers Specifications description: Designed to protect your system and extend the life of your filters, BF breathers stand guard with high capacity, high efficiency pleated glass media elements. --- [![Donaldson Hy-Pro](https://www.hyprofiltration.com/hs-fs/hubfs/Donaldson%20Hy-Pro%20Logo_Blue.png?width=170&height=76&name=Donaldson%20Hy-Pro%20Logo_Blue.png) ![Donaldson Hy-Pro](https://www.hyprofiltration.com/hs-fs/hubfs/Donaldson%20Hy-Pro%20Logo_Blue.png?width=170&height=76&name=Donaldson%20Hy-Pro%20Logo_Blue.png) ](https://www.hyprofiltration.com?hsLang=en) [**](https://www.hyprofiltration.com/products/reservoir-accessories/bf-breather-specifications#tmpmodule_1710871496765239) [![Distributors](https://no-cache.hubspot.com/cta/default/170326/6a993b6f-f737-4a22-8a35-a45c4da5c3b4.png)](https://cta-redirect.hubspot.com/cta/redirect/170326/6a993b6f-f737-4a22-8a35-a45c4da5c3b4) [![eCatalog](https://no-cache.hubspot.com/cta/default/170326/4050f587-90b6-4151-8b5e-82d87ca58336.png)](https://cta-redirect.hubspot.com/cta/redirect/170326/4050f587-90b6-4151-8b5e-82d87ca58336) ** ## BF Breathers High Flow Particulate Breathers Control airborne contamination and extend the life of other filters in your system. BF Breathers go beyond ineffective filler/breather caps to protect your system with high capacity, high efficiency pleated glass media elements. Combine with Hy-Pro Filter Assemblies and Fluid Conditioning Equipment for the ultimate in Total Systems Cleanliness.   [![Download Brochure](https://no-cache.hubspot.com/cta/default/170326/d9905c99-4ec2-47a8-ad1b-b1292cdf7f63.png)](https://cta-redirect.hubspot.com/cta/redirect/170326/d9905c99-4ec2-47a8-ad1b-b1292cdf7f63) BF*256 #### Height 12.4" 31.5 cm #### Diameter 8.9" 22.6 cm #### Weight 21 lb 9.5 kg #### Air Flow 1320 gpm 176 cfm 4997 Ipm Specifications are approximations taken from base models (Connection options B**/N**) and will vary according to options chosen. Connection option A** dimensions will vary slightly. Contact Hy-Pro for exact specifications. BF*2511 #### Height 18.1" 46.0 cm #### Diameter 8.9" 22.6 cm #### Weight 22 lb 10.0 kg #### Air Flow 1450 gpm 194 cfm 5489 Ipm Specifications are approximations taken from base models (Connection options B**/N**) and will vary according to options chosen. Connection option A** dimensions will vary slightly. Contact Hy-Pro for exact specifications. BF*2517 #### Height 23.7" 60.2 cm #### Diameter 8.9" 22.6 cm #### Weight 25 lb 11.3 kg #### Air Flow 1825 gpm 244 cfm 6908 Ipm Specifications are approximations taken from base models (Connection options B**/N**) and will vary according to options chosen. Connection option A** dimensions will vary slightly. Contact Hy-Pro for exact specifications. BF*36 #### Height 12.4" 31.5 cm #### Diameter 8.9" 22.6 cm #### Weight 25 lb 11.3 kg #### Air Flow 1825 gpm 244 cfm 6908 Ipm Specifications are approximations taken from base models (Connection options B**/N**) and will vary according to options chosen. Connection option A** dimensions will vary slightly. Contact Hy-Pro for exact specifications. BF*311 #### Height 18.1" 46.0 cm #### Diameter 8.9" 22.6 cm #### Weight 26 lb 11.8 kg #### Air Flow 2100 gpm 281 cfm 7949 Ipm Specifications are approximations taken from base models (Connection options B**/N**) and will vary according to options chosen. Connection option A** dimensions will vary slightly. Contact Hy-Pro for exact specifications. Bf*317 #### Height 23.7" 60.2 cm #### Diameter 8.9" 22.6 cm #### Weight 32 lb 14.5 kg #### Air Flow 2375 gpm 317 cfm 8990 Ipm Specifications are approximations taken from base models (Connection options B**/N**) and will vary according to options chosen. Connection option A** dimensions will vary slightly. Contact Hy-Pro for exact specifications. Operating Temperature 30°F to 225°F (0°C to 105°C) Materials of Construction #### Tube Assembly Plated steel #### Shell Powder coate steel #### Element End Caps + Handle Synthetic – incinerates @ 1100°F (593°C) ## Have a Question for Donaldson Hy-Pro? [![Contact Us](https://no-cache.hubspot.com/cta/default/170326/82b6a151-2481-4e91-9cac-0d88a5679d18.png)](https://cta-redirect.hubspot.com/cta/redirect/170326/82b6a151-2481-4e91-9cac-0d88a5679d18) [**](https://www.linkedin.com/company/hy-pro-filtration) [**](https://www.youtube.com/c/hyprofiltration) [![Donaldson Hy-Pro Logo](https://www.hyprofiltration.com/hs-fs/hubfs/Hy-Pro%20Logos/Donaldson%20Hy-Pro%20Logo%202.png?width=130&height=58&name=Donaldson%20Hy-Pro%20Logo%202.png "Donaldson Hy-Pro Logo")](https://www.hyprofiltration.com?hsLang=en) Donaldson Hy-Pro 6810 Layton Road Anderson IN, 46011 | +1 (317) 849-3535 | info@hyprofiltration.com | All Rights Reserved 2026 ** [[fa icon="chevron-up"]](https://www.hyprofiltration.com/products/reservoir-accessories/bf-breather-specifications#)