PVDF HP BCF Male Adapter. +GF+  735.914.310  1 1/2 x 50mm Male Adapter  x  Fuse.  George Fischer brand.  Still in the factory Double for High Purity or Regular use.  Can be used for High purity Water or used with Chemicals.  This can be Butt Fused, Ir Fused or BCF (Bead and Crevice Free)