MILTON VACUUM FLASK DUO DLX 750
- Brand : Milton
- Size : 750 ML
- Model : DUO DLX
- Product Type : Vacuum Flask Bottle
- Color or Design : Steel
- Material : Stainless Steel
DELIVERY OPTIONS
Milton Vacuum Flask Duo DLX 750 | 700ml Thermosteel | 24-Hour Hot & Cold
The Milton Duo DLX 750 is Milton's flagship thermosteel flask — a 700ml double-wall vacuum insulated bottle built from SS304 stainless steel with a copper-coated inner chamber that delivers genuine 24-hour temperature retention. Hot beverages stay hot through the night; cold drinks stay cold through the full working day and beyond. This is not a casual hydration bottle — it is a serious flask for people who need serious performance.
In its classic silver finish and with an ISI-certified, leak-proof design, the Duo DLX 750 has become one of Milton's most recognised and long-running products. Customers who buy it for office use, school runs, hikes, and travel return to it again and again precisely because it never lets them down — the insulation holds, the lid seals, and the build quality endures years of daily use without complaint.
Key Features
24-Hour Hot & Cold Retention — Copper-Coated Vacuum Insulation
The Duo DLX 750 features double-wall vacuum insulation with an inner copper coating that significantly enhances thermal retention beyond standard vacuum flasks. Hot beverages remain drinkably warm for up to 24 hours; cold drinks stay cool for equally long — performance that makes it genuinely useful from early morning through the following day.
SS304 Stainless Steel — Inner & Outer
Both the interior and exterior are crafted from 304-grade stainless steel — food-safe, rust-proof, corrosion-resistant, and built to last years of daily use. The SS304 construction means no metallic taste, no chemical leaching, and no degradation in drink quality regardless of what you put in the bottle.
ISI Certified & BPA Free
The Duo DLX 750 carries ISI certification — India's quality standard for safe, reliable consumer products — and is BPA free throughout. Every material in contact with your beverage meets established safety standards, giving you complete confidence in what you drink every day.
Flip Lid That Doubles as a Cup
The Duo DLX's distinctive flip lid unscrews to reveal a full cap that can be used as a drinking cup — a feature that makes it especially practical for sharing a hot drink during travel, picnics, or at the office. The threaded closure seals firmly and makes pouring controlled and spill-free.
100% Leak-Proof — Office, Gym, Trek & Travel
The screw-top cap with its broad, smooth threads creates a complete liquid-tight seal. Customers use the Duo DLX 750 for trekking, long office days, school commutes, and travel — in every context, the flask earns consistent praise for keeping bags completely dry regardless of how it is carried.
Slim Profile — Fits Car Holders & Bags
Despite its 700ml capacity, the Duo DLX 750's narrow body slides easily into car cup holders, backpack side pockets, and standard bag compartments. Reviewers note it is lightweight and easy to carry for a flask of its performance class — a practical companion rather than a cumbersome one.
Frequently Asked Questions
What is the actual drinking capacity of the Duo DLX 750?
The drinking capacity is 700ml. The "750" in the model name refers to the series designation; the actual volume is 700ml, confirmed across Milton's product listings and labelling.
Does it really keep drinks hot for 24 hours?
Yes. The copper-coated vacuum insulation is specifically engineered for 24-hour retention. For best results, pre-warm the flask with hot water before filling, and ensure it is filled to capacity — a full bottle retains temperature more effectively than a partially filled one.
What is the lid design on the Duo DLX 750?
The Duo DLX 750 has a screw-top cap with broad threads for a comfortable grip. The cap unscrews to double as a drinking cup — a useful feature for sharing hot beverages on the go. One reviewer noted the lid can feel slightly stiff on first use, which is normal for a new flask.
Is the Duo DLX 750 suitable for trekking and outdoor use?
Yes — it is among the most popular choices for trekking and outdoor use in the Milton range. The stainless body is unbreakable, the insulation handles cold outdoor temperatures well, and the leak-proof lid means it can be stowed in a trekking pack without concern.
Is this flask ISI certified?
Yes. The Milton Duo DLX 750 carries ISI certification — India's Bureau of Indian Standards quality mark — confirming it meets established safety and performance standards for consumer vacuum flasks.
Can this be used for cold drinks and not just hot?
Absolutely. The 24-hour retention works equally for cold beverages. Cold water, nimbu paani, or chilled juice will stay pleasantly cool throughout a full day in warm conditions, making it as useful in summer as in winter.
Buy Milton Duo DLX 750 in Varanasi
Girdhar Das & Sons, Varanasi's kitchenware destination since 1970, stocks the Milton Vacuum Flask range including the Duo DLX series in multiple sizes. Visit our Sigra store in Varanasi or order online for doorstep delivery across India.