In-Line E-Vac Deluxe Kits add an auto drain filter separator and pressure regulator to the E-Vac, vacuum cups, fittings, vacuum tubing and mounting clip. EXAIR's In-Line E-Vacs are engineered to produce instantaneous vacuum at the point-of-use. Low vacuum units up to 21" Hg (91 kPa) with vacuum flows up to 18.5 SCFM (524 SLPM) are typically used for porous materials such as cardboard, textiles or delicate materials. There are 7 In-Line models that vary by flow and vacuum level. These single stage, cylindrical units are compact and easy to mount. They can be held in place by threading them directly onto a compressed air line or with the use of a mounting clip.EXAIR's In-Line E-Vacs are engineered to produce instantaneous vacuum at the point-of-use and In-Line E-Vac Deluxe Kits provide the tools to fine tune your vacuum system and ensure a clean supply of air. These single stage, cylindrical units are compact and easy to mount. Low vacuum units up to 21" Hg (91 kPa) with vacuum flows up to 18.5 SCFM (524 SLPM) are typically used for porous materials such as cardboard, textiles or delicate materials.