Rainley Complete Starter Kit

Start here. Learn your water first.

The Rainley Complete Starter Kit pairs your Bossa shower filter with a spare MicronFlo cartridge — giving you enough runway to actually understand your own water before deciding what's next.

Every home's water is different. Pipe age, plumbing material, and distance from the treatment plant all affect how quickly your cartridge reaches saturation — so your first cartridge change is also useful information. There's no fixed schedule, and no way to know the exact day. This kit means you're covered for that first swap, without committing to anything ongoing.

What's included:

• 1 Rainley Bossa shower filter (with MicronFlo cartridge pre-installed)
• 1 spare MicronFlo replacement cartridge

Your Bossa arrives ready to install and filtering from the very first use. When your first cartridge reaches saturation — water starting to smell like tap water, skin and hair feeling less soft, or a gradual drop in flow — your spare is already on hand. No extra order, no waiting, no pressure to decide anything yet.

🛁 Install takes under 2 minutes, no tools required.
🔁 Cartridge swap takes less than a minute — no tools, no fuss.

Once you know your own replacement rhythm, subscribing means we handle the timing for you. [Subscribe and save].