Ideal-Air Screened Wall Vent, 12 Inch. Galvanized Steel Duct Vent

Ideal-Air 12 Inch Wall Vent With Screen and Duct Collar This is a galvanized sheet steel wall vent that gives a 12 in duct a clean, finished opening through a wall. One side is a flat face with a screened opening, and the other is an extended collar that accepts flex or rigid duct. The longer collar leaves room to clamp the duct securely so it stays put. The screen sits across the opening to help keep insects, pests and debris out of the duct run. Galvanized steel resists rust, so the vent holds up on an exterior wall or in a damp grow room. It works in either direction, as a passive inlet or as the outlet for an exhaust fan. This size suits large inline fans and big passive intakes for rooms with heavy airflow needs. Ideal-Air makes it as part of the brand's ventilation hardware for grow rooms and greenhouses. Because it is plain sheet metal, it can be painted to match siding or an interior wall. Installation takes common tools and a hole saw or reciprocating saw. Planning a Fresh Air Intake Through the Wall A sealed grow room needs a fresh air intake that matches the exhaust, or the fan ends up starving for air. Size the passive opening at least as large as the exhaust duct so the room sits at a slight negative pressure. That slight vacuum keeps odors from drifting out through door gaps. Cut the hole just large enough for the collar, then seat the vent face flat against the wall. Seal the face with exterior caulk or foam tape so rain and drafts stay out. Run the duct to the collar and fasten it with a band clamp or foil tape. Keep the run short and straight. Each bend cuts airflow at the fan. On an exterior wall, place the vent away from dryer exhausts, sprinklers and anything that kicks up dust. Check the screen each season and brush off lint, pollen and dust. A clogged screen quietly reduces airflow and pushes room temperatures up. On the exhaust side, a carbon filter handles odor before air ever reaches the vent. When the vent serves as an inlet, a filter on the duct also helps keep fine dust off the canopy. Key Features 12 in Duct Size: Fits 12 in flex or rigid duct for large inline fans and passive intakes. Extended Collar: Leaves room to clamp or tape the duct securely to the vent. Screened Opening: Helps keep insects, pests and debris out of the duct run. Galvanized Steel: Rust-resistant sheet metal for exterior walls and humid rooms. Intake or Exhaust: Works as a fresh air inlet or as the outlet for an exhaust fan. Technical Specifications Specification Value Item number 736388 Brand Ideal-Air Duct size 12 in Material Galvanized sheet steel Opening Screened Collar Extended, for duct connection Use Fresh air intake or exhaust outlet Mounting Wall