Eleaf Melo 4S Tank
The Eleaf Melo 4S Tank (4ML) provides terrific flavor and thick clouds. The tank is a convenient top filling system. Perhaps the biggest feature worth mentioning is that Melo 4S Tank utilizes the newly developed EC-A Series Coil as well as other EC Coils. Super austenitic mesh winding stainless steel (AST-steel) is adopted as the coil material, which delivers ultra rich and pure flavor in an instant and supports longer lifespan than ever. This high-quality stainless steel is corrosion-resistant, rust-free, durable and has a very fast heating speed evenly distributed heat, bringing you first-class taste and vapor experience. EC-A coil enters fresh air from the double-slotted airflow ring at the bottom of the tank, which can be continuously adjusted from DL to RDL through a wide air inlet : Eleaf EC-A 0.5ohm coils (Wattage Range: 20-40W), Eleaf EC-A 0.3ohm coils (Wattage Range: 30-50W) and Eleaf EC-A 0.15ohm coils (Wattage Range: 40-70W). Besides, with a wider 510 platform, iStick Pico Plus could accept tanks up to 25mm diameter.

Features
• 4ml Melo 4S Tank
• Top Filling System
• New EC-A coils
• Innovative AST-steel for boosting flavor
• Smart coil protection without dry hits
• Adjustable bottom airflow system
• Design for DL & RDL vaping
Specifications
Diameter: 25mm
Height: 56mm
Material: stainless steel+glass
Capacity: 4ml
Filling Method: Top Filling
Drip Tip: 510
Airflow: Bottom Adjustable
Our standard 30 day warranty covers defective product.
Changing the coil on an Eleaf Melo 4 S tank is straightforward. Here's how to do it:
Removing the old coil
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Unscrew the base of the tank from the glass/chimney section (twist counterclockwise). The Melo 4S uses a bottom-fill, bottom-coil design, so you access the coil from the base.
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Empty out any remaining e-liquid into a cup or tissue to avoid spills.
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Unscrew the old coil counterclockwise from the base — it screws in/out just like a standard 510-threaded coil.
Installing the new coil
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Screw the new coil clockwise into the base until snug (don't overtighten).
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Prime the coil: drip a few drops of e-liquid directly into the coil's wicking holes and let it sit for 5–10 minutes so the cotton fully saturates. This prevents dry hits and burnt taste on first use.
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Reassemble the tank by screwing the base back onto the glass section.
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Refill the tank through the top-fill or side-fill port (depending on your Melo 4S version), then let it sit a few more minutes before vaping.
Tips
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Melo 4S typically uses EC/EC2 series coils (commonly 0.3Ω or 0.5Ω) — double-check the resistance printed on your old coil to order the matching replacement.
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Start vaping at a lower wattage for the first few puffs to let the coil break in gradually.
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If you get a burnt taste immediately, the coil may not have primed long enough or wasn't seated properly.