{"product_id":"vivosun-r4-4-inch-inline-duct-fan-with-variable-speed-controller-190-cfm-for-grow-tent","title":"VIVOSUN R4 4-Inch Inline Duct Fan with Variable Speed Controller – 190 CFM for Grow Tent","description":"\u003cp\u003eMeet the VIVOSUN R4 4-Inch Inline Duct Fan, a purpose-built solution for moving air smoothly in compact spaces. Built for grow tents, hobby rooms, bathrooms, and other indoor environments, this fan aims to balance performance with ease of use. The R4 blends the strengths of axial and centrifugal designs to deliver reliable airflow where it matters most, all while keeping energy use in check.\u003c\/p\u003e\n\n\u003cp\u003ePerformance and efficiency take center stage. The unit can deliver up to 190 CFM at 2300 RPM, making it capable of refreshing air across typical grow tent setups and small workshops. By promoting steady air movement, it helps dissipate heat pockets, manage humidity, and support a stable ambient environment for equipment and plants alike. \u003c\/p\u003e\n\n\u003cp\u003eFine-tuned airflow is within reach thanks to the stepless speed controller on the power cord. This lets you dial in the exact air volume needed to balance temperature, humidity, and noise. The ability to reduce speed when fewer plants are in the tent or when external conditions change means you can tailor performance to your exact needs, rather than relying on a single setting.\u003c\/p\u003e\n\n\u003cp\u003eInstallation is straightforward. The R4 is compact and lightweight, so it fits into tight spaces. It ships with a mounting bracket that clearly indicates airflow direction, and the duct ends are removable with locking tabs for quick, secure connections. This setup supports flexible orientation to suit your duct routing and tent layout.\u003c\/p\u003e\n\n\u003ch2\u003eWhat you can achieve with the R4\u003c\/h2\u003e\n\n\u003cul\u003e\n  \u003cli\u003eEnergy-efficient ventilation delivering up to 190 CFM at 2300 RPM for robust air movement.\u003c\/li\u003e\n  \u003cli\u003eLow noise operation with blades designed for smooth, steady airflow.\u003c\/li\u003e\n  \u003cli\u003eAdjustable airflow via a stepless controller for customized ventilation.\u003c\/li\u003e\n  \u003cli\u003eCompact footprint ideal for indoor grow tents, bathrooms, basements, and workspaces.\u003c\/li\u003e\n  \u003cli\u003eUser-friendly installation with bracket, direction guide, and secure duct ends.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eIn real-world setups, you might pair the R4 with carbon filters, ducting, and other ventilation components to support a balanced indoor climate. Its compact size and adjustable speed make it a practical choice for small grow tents, moisture-prone bathrooms, or a home workshop that generates heat or dust. The unit’s robust construction translates to dependable operation in environments that demand continuous airflow without taking over the space.\u003c\/p\u003e\n\n\u003ch3\u003eVersatile indoor applications\u003c\/h3\u003e\n\n\u003cul\u003e\n  \u003cli\u003eGrow tent air circulation and heat management in compact rigs.\u003c\/li\u003e\n  \u003cli\u003eMoisture removal and humidity control in bathrooms and laundry areas.\u003c\/li\u003e\n  \u003cli\u003eVentilation for basements to help reduce dampness and improve air exchange.\u003c\/li\u003e\n  \u003cli\u003eDust management and heat dissipation in small 3D printing or hobby workshops.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eChoosing the VIVOSUN R4 means opting for a scalable solution that adapts as your indoor projects evolve. While results depend on your specific setup and conditions, this inline fan offers a practical path to improve air movement where you need it most.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What makes the VIVOSUN R4 suitable for grow tents?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It delivers up to 190 CFM at 2300 RPM with adjustable speed and a compact design to fit tight spaces.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is setup easy and compatible with standard ducts?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. It includes a mounting bracket and removable duct ends for straightforward installation.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"VIVOSUN","offers":[{"title":"Default Title","offer_id":45739005149370,"sku":"B01DXYMGOM","price":133.79,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/3536\/8890\/files\/vivosun-r4-4inch-inline-fan-front-view.jpg?v=1774714382","url":"https:\/\/gardencanada.ca\/products\/vivosun-r4-4-inch-inline-duct-fan-with-variable-speed-controller-190-cfm-for-grow-tent","provider":"Garden Canada","version":"1.0","type":"link"}