FN-1033, Filter Funnel, with side arm outlet Similar to FT-0082 but with sidearm outlets (with glass/PTFE plugs) closed to the cones at the end of the tubes. Fritted filter tube is available with your choice of Coarse (C) or medium (M) porosity fritted disc. Length of the tube between the two cones is 80mm. For replacement of stopcock plug and accessories, see AC-0010, AC-0012, and AC-0016.