select id from where lcase(lang)=''

    Products number

    1/4" Inner - 1/8" Inner fitting, NPTF

    1/4" Inner - 1/4" Inner fitting, NPTF

    5/16" Inner - 1/8" Inner fitting, NPTF

    5/16" Inner - 1/4" Inner fitting, NPTF

    3/8" Inner - 1/8" Inner fitting, NPTF

    3/8" Inner - 1/4" Inner fitting, NPTF

    5/8" Inner - 1/2" Inner fitting, NPTF

    5/8" Inner - 3/4" Inner fitting, NPTF

    7/8" Inner - 3/4" Inner fitting, NPTF

    7/8" Inner - 1" Inner fitting, NPTF

      Products number