I've been an idiot and lost the cup/outer lid of the flask. can I buy spare parts from anywhere? also, will not having the cup/outer lid on reduce the

Yes, these are available directly from Thermos. https://www.thermosonline.co.uk/store/Spare-Parts/sc_95

I have lost the screw in tops for my Thermos. Can any one tell me if these pieces can be attained on their own ?

Try https://www.thermosonline.co.uk/store/Spare-Parts/

i am needing a new screwcap with seal for thermos ultimate 900 as my seal has become loose wondering where to purchase one thanks

Flasks online.. I’ve used them to order a replacement cap

Unscrew the 'cork' a few turns then pour (practice over the sink at first) OR for more control, remove the cork completely.

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🔥 Stay hot, stay cool, stay unstoppable! ❄️

SMART SPILL CONTROL - Innovative two-part stopper and wide mouth design ensure mess-free pouring and effortless cleaning.
GENEROUS 900 ML CAPACITY - Perfectly sized to fuel your long workdays or weekend hikes without constant refills.
COMFORT GRIP ZERO SWEAT - Double-wall insulation means no condensation or heat transfer—handle your flask comfortably anytime, anywhere.
ADVENTURE PROOF DURABILITY - Crafted with tough stainless steel and silicone guards to survive every drop, bump, and outdoor hustle.
ALL DAY TEMPERATURE MASTERY - Keeps your coffee piping hot or your iced tea refreshingly cold for a full 24 hours—no compromises.

The Thermos Charcoal Ultimate Flask is a 900ml insulated stainless steel bottle engineered with advanced vacuum technology to keep beverages hot or cold for 24 hours. Featuring a rugged design with protective silicone rings, a leak-proof two-part stopper, and a comfortable, condensation-free grip, it’s the ideal companion for professionals and adventurers who demand durability and temperature precision on the go.

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RM443

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Product Dimensions	11.81 x 11.81 x 3.46 cm; 390 g
Item volume	900 Millilitres
Care instructions	Hand Wash Only
Dishwasher safe?	No
Number of pieces	1
Batteries required	No
Included components	Lid Cup, Pouring Spout, Protective Silicone Rings, Stainless Steel Bottle, Two Part Stopper
Item weight	390 Grams

ThermosCharcoal Ultimate Flask (900ml), Reusable Insulated Stainless Steel Thermal Coffee Cup for Hot or Cold Drinks, Vacuum Sealed Water Flask with a Leak-Proof Lid, 24hr Hot/24hr Cold

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