Sweetwater Regenerative Blower BF-4 Air Filter

Sweetwater Regenerative Blower Air Filter The BF4 is a 4″ replacement air filter for models S11, S21, and all Whitewater modelsThe BF6 is a 6″ replacement air filter for models S31 and largerSweetwater Regenerative Blower Air Filter The BF4 is a 4″ replacement air filter for models S11, S21, and all Whitewater modelsThe BF6 is a 6″ replacement air filter for models S31 and largerProduct code: 3163Item No. AE-SW-BF-4