Integral sealing ring ensures a superior seal at mounting hole location, every time; IP 65, 67 and 68 Rated. Allow the passage of air for ventilation and heat dissipation, yet prevent moisture intrusion, remain liquid tight. Maximum airflow: ≥16.6 LPM/3.7cm2 @ 13.5 psi. UL Rated for Type NEMA 3R, 4 and 4X applications. Filter membrane is both hydrophobic and oleophobic and prevents moisture and particulate contamination in electronic enclosures. Pressure compensating seal prevents buildup of pressure inside of electronic enclosures due to environmental temperature cycling. Quick and easy installation into Threaded (LTTVP) and Clearance (LTSV) Holes. Membrane seal is ultrasonically welded to nylon body. Lower cost option over metal or steel plugs. Approximate Head Thickness: .21" (5,3 mm). Thickness may vary. Hex shaped head for wrench installation (LTTVP only). Electrically non-conductive Nylon 6/6. Quick and easy Snap-in installation into Clearance Holes. All sizes and types feature (9) .094" (2,4 mm) diameter vent holes. Snap-In plugs for panel and housing applications. Lower cost option over brass or steel plugs. Snap into a range of panel thicknesses up to .125" (3,2 mm) with no tools (LTSV only).