Good to know
Frequently asked questions
Shipping, fit, testing and cleaning, in plain words.
When does it ship?
Pre-orders are expected to ship in early 2027. If the date moves, we email you and you can cancel for a full refund.
Can I cancel my pre-order?
Yes. Email simplesipinfo@gmail.com any time before your order ships and we refund the full amount to your original payment method.
What is in the box?
The Simple Sip filter: the bottle adapter cap, the telescoping housing with the activated carbon cartridge and micro-mesh pre-filter, the removable silicone mouthpiece and a protective cap. Tumbler lid adapters are sold separately.
Which bottles does it fit?
On its own, Simple Sip pushes into standard disposable water bottles. For a tumbler you need the lid adapter for its size, which holds the filter in place of the tumbler's lid.
Which adapter do I need?
Match the adapter to your tumbler: 40 oz for Stanley style tumblers with a handle, 30 oz or 20 oz for Yeti style tumblers. One filter works with every adapter. Simple Sip is not affiliated with Stanley or Yeti; the names describe tumbler styles.
Does the adapter work without the filter?
No. The adapter is the lid that holds the Simple Sip filter in your tumbler, so you need one filter. One filter works with every adapter.
Is it certified?
Not yet. Independent testing to NSF/ANSI standards is underway, and we will post the results here when they are in. Until then we describe what the filter is designed to do and publish no test figures.
What does the filter reduce?
An activated carbon cartridge reduces chlorine and sediment and improves the taste and odor of tap water. A micro-mesh pre-filter catches particles before they reach the carbon.
How do I clean it?
The silicone mouthpiece pulls off for rinsing, and the protective cap keeps the spout clean in your bag. We will publish full care instructions for the housing and cartridge before the first batch ships.

Not ready yet? Join the waitlist.
One email when the first batch ships, and one before it does. Nothing else.
Pre-orders are charged in full at checkout and ship early 2027.

