Frequently Asked Questions
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FAQ
Find answers to your questions about Rainley's high-quality shower products. The MicronFlo filter cartridge lasts up to 10,000 gallons under EPA-defined moderate contaminant conditions. But water is not the same everywhere, and the differences directly affect how long a cartridge lasts.
If your home is on municipal water i.e. your water has been treated by your local utility, but that treatment varies by city or town. Much of that variation comes down to geography where a utility's water originates (surface reservoirs versus underground aquifers), the mineral composition of the local soil and bedrock, and the distance water travels from source to treatment plant all shape how it's treated and what's in it. Some utilities use chlorine for disinfection, others use chloramine, which holds up better over distribution distances. Municipal water also carries different levels of hardness (calcium & magnesium) depending on the source your utility draws from, and different levels of sediment and total dissolved solids (TDS).
If your home is on well water, your water has not gone through municipal treatment at all. Well water often carries higher sediment, higher mineral content, and in some regions, additional issues such as iron or sulfur (hydrogen sulfide), which causes a rotten egg odor, often also tied to the local geology the well draws from. Well water can place a heavier load on your filter cartridge than municipal water does.
Because of these differences between municipal and well water, hard and soft water, and chlorine and chloramine treatment, a household in California, a household in Texas, and a household in Florida can each exhaust the same cartridge at a different rate, even using the exact same number of gallons. Household size and shower habits add another layer of variation on top of that.
Because replacement timing depends on so many factors, MicronFlo features a transparent casing instead of a fixed calendar. When you experience buildup, it's time to replace. No guessing, no one size fits all number.
Enjoy free standard shipping on domestic orders over $50 in the continental US. Currently shipping within the US, we process orders quickly and cannot edit or cancel once placed. Sign up for our subscription service for automatic MicronFlo replacements, with the best pricing and exclusive early access to product launches. Rainley products, including Bossa inline filters, and MicronFlo cartridges, are BPA-free and compatible with ½" NPT connections, the standard for US shower setups.
ORDERS & SHIPPING
ORDERS & SHIPPING
Where do you ship?
Where do you ship?
We currently ship to customers in the United States. Sign up for our email to be the first to know of other expansions!
How can I cancel or change my order?
How can I cancel or change my order?
Once your order is placed and processed, we're unable to edit the items in your order or fully cancel your order as we strive to fulfill orders as quickly as possible.
If you have any questions, please email our support team at glow@rainley.com — while we cannot guarantee any changes or cancellations, we will do our best to help!
When will my order ship?
When will my order ship?
We make every effort to process your order within 24 hours. However, due to our very high order volumes, please allow 2-3 business days to process your order.
We'll send you a shipping confirmation email with your tracking number once your order has shipped so you can keep track of it.
How much does shipping cost?
How much does shipping cost?
We offer free standard shipping on domestic orders of $50+ for continental US.
My package was marked as delivered, but it never arrived?
My package was marked as delivered, but it never arrived?
We’re sorry to hear that! Please reach out to our customer service team email if you are experiencing any problems with your order delivery.
SUBSCRIPTIONS
How do subscriptions work?
How do subscriptions work?
Sign up for subscriptions to receive your MicronFlo replacement every 3 months, with no hassle or worry about your shower. Super subscription customers have the best price ever on every order and early access to new product drops (trust us, you want this access).
Manage your subscription easily by simply logging into your account. You can easily choose to skip a monthly shipment, change the frequency of your shipments, swap your subscription products, gift one of your shipments if you are out of town, or cancel your subscription.
How do I manage my account information and/or subscription?
How do I manage my account information and/or subscription?
You can manage your account information and subscription within your account page by clicking "Manage Subscriptions" under Account Details.
There you can do everything from changing your shipping address, adjusting frequency, pausing or skipping an order, updating payment details and much more.
How can I change my subscription shipping frequency or cancel my subscription?
How can I change my subscription shipping frequency or cancel my subscription?
It’s super easy to manage your subscription on your account page.
If you still have any questions, please reach out to our customer support team via email.
PRODUCTS & SCIENCE
Are Rainley products compatible with most shower setups?
Are Rainley products compatible with most shower setups?
Yes, Rainley OCTA and BOSSA are compatible with all standard shower setups in the US.
The MicronFlo filter cartridge also fits most inline shower filter housings available on the market.
Are Rainley products BPA-free?
Are Rainley products BPA-free?
Yes, all Rainley products, including the OCTA shower head, BOSSA inline shower filter, and MicronFlo replacement cartridges, feature BPA-free casing.
BPA (Bisphenol A) is a chemical commonly used in the production of plastics. Studies have shown that BPA can sometimes leach into water, particularly with heat exposure, and prolonged exposure to BPA may have potential health risks, including hormone disruption.
By choosing BPA-free materials, we ensure that Rainley products provide a safer shower experience that aligns with our commitment to your health and well-being.
How often should I replace my MicronFlo filter cartridge?
How often should I replace my MicronFlo filter cartridge?
The MicronFlo filter cartridge is designed to last for up to 10,000 gallons of water under moderate contaminant conditions, as defined by EPA guidelines. For most households of 2-3 people, this equates to about 3 months of use.
However, factors such as local water quality and household size may affect this timeline. Areas with higher levels of chlorine, sediment, or impurities may require more frequent replacements.
The transparent casing lets you visually monitor the filter. If you notice discoloration, debris buildup, or reduced flow, replace the cartridge even if it hasn’t reached the 10,000-gallon mark.
Will my water pressure be affected by using the MicronFlo filter?
Will my water pressure be affected by using the MicronFlo filter?
No, the MicronFlo was designed to ensure that water pressure remains consistent, giving you an uninterrupted and enjoyable shower experience.
What if I rent my home? Can I still use Rainley products?
What if I rent my home? Can I still use Rainley products?
Definitely! Rainley products are renter-friendly and require no permanent modifications to your shower setup. They’re easy to install and uninstall, making them perfect for apartments or rented spaces.
How does tap water quality affect filter performance?
How does tap water quality affect filter performance?
Tap water quality varies across the U.S. due to differences in water sources, treatment methods, and infrastructure.
Under moderate contaminant conditions, the MicronFlo filter performs optimally. In regions with higher levels of chlorine, sediment, or hard water, the filter’s lifespan may be reduced.
Rainley’s transparent casing helps you monitor the filter’s condition to adapt to your specific water quality.