{"product_id":"uwell-crown-4-iv-tank","title":"UWELL Crown 4 IV Tank","description":"\u003cp\u003e\u003cstrong\u003eUWELL Crown 4 IV\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eis the ultimate flagship vape tank structure, introducing a new line of Crown coils with materials improvements, a simplified threaded top-fill system with 2mL maximum capacity, and a striking visual design. The Uwell Crown 4 presents a brand new patented self-cleaning technology within the atomizer core of the new Crown line of coils, absorbing excess eJuice into a condensation holder for later vaporization during usage. This helps reduce on wasted eJuice and lessens the need to clean the detachable structure of the tank.\u003c\/p\u003e\n\u003cp\u003eIn addition, within the atomizers is the patented Pro Flavor Core Optimization System, or Pro-FOCS for short. This system recycles the in-taken air twice through the core of the atomizer to saturate the recycled draw with additional flavor from the vaporized eJuice. Also, the Crown IV Tank hosts a simplified quarter-turn threaded top fill system for faster refills and less downtime between cloud chucking sessions. Furthermore, the Crown 4 has a visually striking design, being hand-polished and knurled at the top and bottom ends, making airflow manipulation and unscrewing of the top fill system even easier.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUwell Crown 4 Sub-Ohm 28mm Tank Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e28mm Diameter\u003c\/p\u003e\n\u003cp\u003e2mL Standard Glass\u003c\/p\u003e\n\u003cp\u003eSuperior Stainless Steel Construction\u003c\/p\u003e\n\u003cp\u003ePyrex Glass Reinforcement\u003c\/p\u003e\n\u003cp\u003eQuarter Turn Threaded Top Refill System\u003c\/p\u003e\n\u003cp\u003eUwell Crown 4 Coil Line\u003c\/p\u003e\n\u003cp\u003e0.2ohm Dual SS904L Coil - rated for 70-80W\u003c\/p\u003e\n\u003cp\u003e0.4ohm Dual SS904L Coil - rated for 60-70W\u003c\/p\u003e\n\u003cp\u003e0.25ohm SS304 UN1 Coil - rated for 55-65W\u003c\/p\u003e\n\u003cp\u003e0.23ohm FeCrAl UN2 Coil - rated for 60-70W\u003c\/p\u003e\n\u003cp\u003eDual SS904L Coil - Corrosion-Resistance\u003c\/p\u003e\n\u003cp\u003eDouble Helix Mesh Coil\u003c\/p\u003e\n\u003cp\u003eSelf Cleaning Technology\u003c\/p\u003e\n\u003cp\u003ePro-Flavor Optimization Core System\u003c\/p\u003e\n\u003cp\u003eDual Knurled Adjustable Bottom Airflow Control Ring\u003c\/p\u003e\n\u003cp\u003eGold-Plated 510 Connection \u003c\/p\u003e\n\u003cp\u003eDetachable Structure\u003c\/p\u003e\n\u003cp\u003eAvailable in Black, Blue, Green, Rainbow, Purple, Stainless Steel\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1 Uwell Crown IV (4) Tank\u003c\/p\u003e\n\u003cp\u003e1 Spare Glass Tube\u003c\/p\u003e\n\u003cp\u003e1 0.4ohm Dual SS904L Coil - rated for 60-70W\u003c\/p\u003e\n\u003cp\u003e1.0.2ohm Dual SS904L Coil - rated for 70-80W\u003c\/p\u003e\n\u003cp\u003e1 Pack of O-Rings\u003c\/p\u003e\n\u003cp\u003e1 User's Manual\u003c\/p\u003e\n\u003cp\u003e1 Drip Tip Cover\u003c\/p\u003e","brand":"Uwell","offers":[{"title":"Sapphire Blue","offer_id":58483651510604,"sku":null,"price":28.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0855\/7835\/0924\/files\/download-2026-08-20T092646.552.jpg?v=1787214442","url":"https:\/\/www.northwichvapour.co.uk\/products\/uwell-crown-4-iv-tank","provider":"Northwich Vapour","version":"1.0","type":"link"}