Omnipure Connection Options Omnipure K-Series Inline Water Filters offer different connection options such as: AA 1/8” Female Pipe Thread BB ¼” Female Pipe Thread CC 3/8” Female Pipe Thread JJ ¼” Quick Connect KK 3/8” Quick connect SS ¼” 90° Elbow Quick Connect Please visit omnipurefilters.com.au to see all our omnipure products.