Applicable size: HG Power floor vent is suitable for duct openings size 4" × 10". Please measure the size of the floor vent opening before purchasing, not the cover. Product includes: 4x floor vent; 4x floor vent cvoer trap Floor Vent with Screen: Protects valuables and catch debris from entering the ventilation ducts, keeping the ducts clean and the ventilation system functioning properly. HG Power also has replaceable high quality floor vent nets for sale. High Quality Material: The heat vent covers are made of high quality metal, the panel thickness is 8mm, strong and durable, not easy to break or deform, and the surface is anti-rust treatment. Metal floor vent covers last longer than plastic vent covers. Widely Applicable: Heavy duty register vent covers are suitable for kitchens, living rooms, bedrooms, RVs, offices, hotels and more. The floor air vent covers has both side vents for wider ventilation, which better promotes indoor air flow and ventilation. Easy To Install And Clean: Air vent covers fit seamlessly into the floor to prevent tripping hazards. Flush floor grates are easy to install, no screws or tools required. Cleaning is easy with a damp rag or water! High Quality Material: The heat vent covers are made of high quality metal, the panel thickness is 8mm, strong and durable, not easy to break or deform, and the surface is anti-rust treatment. Metal floor vent covers last longer than plastic vent covers. Easy To Install And Clean: Air vent covers fit seamlessly into the floor to prevent tripping hazards. Flush floor grates are easy to install, no screws or tools required. Cleaning is easy with a damp rag or water! Floor Vent with Screen: Protects valuables and catch debris from entering the ventilation ducts, keeping the ducts clean and the ventilation system functioning properly. HG Power also has replaceable high quality floor vent nets for sale. Widely Applicable: Heavy duty register vent covers are suitable for kitchens, living rooms, bedrooms, RVs, offices, hotels and more. The floor air vent covers has both side vents for wider ventilation, which better promotes indoor air flow and ventilation. Applicable Size: HG Power vent cover is for 4*10 inches and floors only. The dimensions provided for adjustable floor vents are the size of the opening in your duct; please measure the length and width of the opening before ordering.