Dm fit abfu0409 female to female adaptor internal thread g1 4 to g3 4 dm fit abfu0409 p an acetal adaptor g1 4 female thread to g3 4 female thread p p the adaptors are manufactured from safe non toxic materials meeting the requirements of the us fda wras ansi nsf 51 61 and sk zert they are widely used in water purification food beverage and pneumatic systems p dm fit abfu0409 pneumatic female to female adaptor internal thread g1 4 to g3 4