Lost a straw, cracked a lid, or just want to keep a favourite bottle going instead of replacing the whole thing? Here you'll find genuine replacement lids, straws, bumpers and cleaning brushes for b.box, Frank Green and MontiiCo drink bottles — so one missing piece doesn't mean buying a brand new bottle.
Shop Spare Parts by Brand
b.box Drink Bottle Replacement Parts: Replacement straw tops for both standard and insulated b.box drink bottles, plus dedicated cleaning brush sets to keep straws and spouts properly fresh.
Frank Green Bottle Parts: Flip straw lid packs, bottle bumper guards for extra drop protection, and car cup holder expanders to make any Frank Green bottle fit standard car cup holders.
MontiiCo Lid Cleaning Brush: A purpose-built brush to reach every corner of MontiiCo bottle lids and straws for a proper clean, not just a rinse.
Why Replace Instead of Repurchase
Better Value: A $12–$20 spare part is a lot cheaper than a whole new bottle — especially when the bottle itself is still in perfectly good shape.
Less Waste: Replacing just the worn or lost part keeps a good bottle out of landfill instead of being tossed over one broken piece.
Genuine Fit: Because these are genuine brand parts, they're built to fit properly and seal as well as the original — no guessing with generic third-party replacements.
Extra Protection: Bumper guards and car cup holder expanders aren't just replacements — they help prevent damage and make bottles more practical for everyday use, from school to the car.
Frequently Asked Questions
How do I know which replacement part fits my bottle?
Check the brand and bottle size printed on the base of your bottle, or compare it against the product photos here — parts are brand and size specific, so it's worth double-checking before ordering.
Do you sell parts for bottles no longer sold on your site?
We stock spare parts for as many current and recent bottle ranges as we can, but not every discontinued colourway will have matching parts available. Contact us if you're unsure and we'll check for you.
Are these genuine parts or generic replacements?
These are genuine parts sourced from b.box, Frank Green and MontiiCo directly — not generic third-party alternatives — so fit and seal quality match the original bottle.
What's a bottle bumper guard for?
A bumper guard is a protective silicone sleeve that fits around the base or body of the bottle to cushion drops and reduce scratches and dents — handy for bottles that get thrown in and out of bags daily.
Are these parts dishwasher safe?
Most straws, lids and bumpers are dishwasher safe on the top rack — check the individual product listing for the specific part, as care instructions can vary slightly by material.
Why Buy From Lunchbox Mini
Fast Australian Shipping: We pack and ship daily from our Australian warehouse, so your order gets to your door quickly.
Genuine, Authorised Stock: We're an official stockist for b.box, Frank Green and MontiiCo, so you're getting genuine parts with proper fit and quality.
Real Help From Real Parents: Not sure exactly which part you need? Our team packs school lunches too — get in touch and we'll help you find the right fit.
Loved by Thousands of Aussie Families: From first-day-of-school nerves to keeping favourite bottles going for years, we've helped thousands of families find lunch gear that actually works.
