Galvanized HEPA Supply Air Box, 4pcs Set For Cleanroom | Huaqi

New Black ABS Snap-in Round Air Vent, Louver HVAC Duct Vent | Huaqi

Fresh Air PE Pipe Fittings, Pipe Clamp, Cutter & Sealing Ring | Huaqi

ABS Hinged Square Diffuser, Detachable Ceiling Air Vent | Huaqi

ABS Fresh Air Beam Passer, No Drilling, Low Air Resistance | Huaqi

Stainless Steel Chimney Rain Cap, Windproof Exhaust Hood | Huaqi