This VIVOSUN AeroZesh inline duct fan HVAC exhaust kit is listed in new condition and includes E42 speed control. The title indicates 4, 6, and 8 inch size options, which is useful when matching the fan to existing ducting or planning a ventilation setup. Free shipping is included, adding value for buyers comparing total cost. This item may suit shoppers looking for an inline fan kit for HVAC or exhaust use and who want adjustable control for airflow. If you are choosing between sizes, check your current duct width and installation needs before buying. Check the listing for full details. VIVOSUN AeroZesh 4/6/8 Inch Inline Duct Fan HVAC Exhaust Kit w/E42 Speed Control. Color: Black, Condition: New. Listed at 12.79 USD. VIVOSUN AeroZesh 4/6/8 Inch Inline Duct Fan HVAC Exhaust Kit w/E42 Speed ControlVIVOSUN AeroZesh Inline Duct FanUnify Your Equipment: Energy-Saving & Low-Noise Fan: Environmental Monitoring: Fully Automated: App Controllable:VIVOSUN AeroWave E6 Grow Tent Fan 6US Patented Square Design: Strong Airflow & Low Noise: Auto Oscillation: Innovative Natural Wind Mode: Adjustable Speeds: Smart Wi-Fi Control: Weatherproof IP-54: Complete Safety System:VIVOSUN GrowHub Controller E42AUnify Your Equipment: Environmental Monitoring: Fully Automated: Customizable Settings: App Controllable Perfect Addition:VIVOSUN GrowHub Controller E25Flexible Combinations App Controlled Plug and Play Smart Grow Expansion to GrowHub E42/E42AAbout usDelivery DetailsTerms of SalesContact USAbout usWHO ARE WE?One-stop shopping for all you want！Founded in California, VIVOSUN is a leading-manufacturer of indoor horticultural equipment, supplying growers around the world with the highest quality equipments to start their own indoor gardens. WHO ARE WE FOR? VIVOSUN is designed for do-it-yourselfers who want to grow what they love. They want a high-quality experience that allows them to easily grow their own, regardless of their skill level. We can develop a better grow culture if we work together. OUR BRAND POSITION? We are revolutionizing indoor growing for all people. These values act as filters and inspriation for any brand touchpoint. THese collective values define how we interact with the world.Delivery Details 1. Items are generally shipped out within 1-2 business days from our warehouse after your payment has been cleared (Sat. & Sun. & Public holiday excluded.)2. We only offer local delivery in USA, which normally takes about 2-6 business days to arrive. If you need Express Mail Service, please contact us by eBay message.3. We are not responsible for undeliverable address. We reserve the right to charge the shipping fee again for returned items due to wrong address supplied by buyer. Any non-received items caused by invalid address registered on PayPal are not in our full refund or replacement policy.4. Our shipping rates include the cost of shipping, handling, packaging and related manpower costs. Terms of SalesFeedback & Detailed Seller Rating:We are transnational corporations, only strive for 5 star positive feedback and will try our best to offer the best service to our buyer. Please email us before leaving negative feedback or open any dispute and please give us 2 business days to resolve the complaint to your satisfaction.Returns:Return is accepted within 30 days after the buyer's receiving the item.After getting the returned item, we will refund the customer at the item's price (excluding the shipping costs to and from).Contact US1. If there's any problem, please do not hesitate to contact us by eBay message, we will reply you within 2 business day (not include Public holiday).2. Work Days: Monday to Friday3. If you don't get response within 1 business days, please check your eBay email or My Messages in case your email provider has an overly-aggressive spam filter blocking eBay or my em ails. Please add us in your contact and email us again.