Suggested Retail: $29.99. VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan HVAC Vent Blower - The VIVOSUN D4 4 Inch 195 CFM Inline Duct Ventilation Fan is designed to improve airflow and reduce humidity, block odors, and lower temperatures in grow rooms, basements, or kitchens. It has a simple setup with flanges on intake and exhaust ends that are easy to assemble with a vent hose. The fan operates quietly at a speed of 2500 RPM, creating an airflow of 195 CFM. The motor is ETL listed with an automatic reset function to prevent overheating, and it comes with a flame-retardant electrical junction box. Brand: VIVOSUN Model: GDFPA-100 -- LOT STICKER: TCE-BOX-PALLETCEB24-ITEM-39adf990___LPNPMCF6566182 -- SIZES ARE ESTIMATED. 7 CALENDAR DAY FULL REFUND GUARANTEE (FROM PRIMARY PICKUP DATE) ON THIS ITEM IF ANY ISSUE IS FOUND THAT WAS NOT DESCRIBED/PICTURED. 7 CALENDAR DAY STORAGE (FROM PRIMARY PICKUP DATE) IS ALSO AVAILABLE. THE PRIMARY PICKUP DATE IS THE DAY AFTER THE AUCTION ENDS. SEE NOTES TO BIDDER, IN AUCTION DETAILS, AT THE TOP OF PAGE 1 FOR MORE INFO.