Return duct

Maico AVM 20 Automatic Non-Return Valve for Round Air Ducts, Galvanized Steel

YMC Frame-Duct Reservoir for HP Printers - Non-Cancellable/Non-Returnable

Enhance your HP printer’s performance with the YMC Frame‑Duct Reservoir, designed for seamless toner flow and reduced clogging. Its durable construction ensures reliable operation while maintaining a compact footprint for efficient workspace integration.

Maico AVM 10 Round Air Duct Non-Return Control Valve 100mm

VEVOR Powder-Coated Steel Return Air Grille for Duct Opening 60.5x45.5 cm, Wall Vent Cover to Improve Ventilation

VEVOR Powder-Coated Steel Return Air Vent Grille 75.5x50.5 cm for Wall Duct Opening, Filter Not Included

PipeLine 100mm One-Way Backflow Prevention Check Valve for Air Ventilation Fittings

Vevor Wall-Mounted Air Extraction Grille with Filter, 75.5 x 50.5 cm, Powder-Coated Steel for Improved Ventilation

VEVOR 50x63 cm Powder-Coated Steel Return Air Vent Grille for Wall, Duct Opening with Detachable Face/Door, Filter Not Included

VEVOR 50 x 63 cm Wall-Mounted Return Air Filter Grille, Powder-Coated Steel with Included Filter for Home Ventilation Improvement

VEVOR 50.5x75.5 cm Powder-Coated Steel Return Air Vent Grille for Wall Duct Opening, Filter Not Included

VEVOR 50.5x50.5 cm Powder-Coated Steel Wall Return Air Vent Grille, Enhanced Ventilation, Filter Not Included