This page explains what Stems & Cartridges collects and why. Effective October 1, 2026.
Reading the site
You do not need an account or an email address to use the index. The site is hosted on Netlify, which keeps standard server logs: IP address, pages requested, browser type and time of request. Those logs are used to keep the site running.
Analytics and Amazon links
This site uses Google Analytics 4 and Amazon Attribution links to measure visits and Amazon clicks. Google Analytics sets cookies and sends usage data to Google under Google's own privacy policy. Amazon Attribution tags tell Amazon that a visit came from this site; they identify the site, not you. We do not use this data to identify you, and no personal information is sold.
The request form
If you use Request a part, we receive what you type in: brand, part number, measurements, details, an optional photo and an optional email. Netlify Forms processes the submission. We use it to check the catalog, to reply if you left an email, and to decide which parts to add next. We do not sell or share it.
Other sites
Buttons marked "FourHome replacement" go to Amazon, where Amazon's own privacy policy applies.