Scopenext 2 female threaded adapter fbsp-trisure – 2 faucets to female tri sure female s56 x 4 some drums come with different thread openings and need converting to 2 npt/nps/bsp female threaded for the 2 faucets to be used. This adapter for putting 2 faucets into female tri sure female s56 x 4 threaded drums and containers makes that process easy and safe. The pe material offers excellent chemical compatibility with drums and containers.