Comparison : Item # 06103-02, Lead Free Coupling 103 (Female Pipe x Female Pipe)
Item # 06103-04, Lead Free Coupling 103 (Female Pipe x Female Pipe)
Item # 06103-06, Lead Free Coupling 103 (Female Pipe x Female Pipe)
Item # 06103-08, Lead Free Coupling 103 (Female Pipe x Female Pipe)
Item # 06103-12, Lead Free Coupling 103 (Female Pipe x Female Pipe)