{"product_id":"shower-filter-replacement-cartridge","title":"20-Stage Shower Filter — Replacement Cartridge","description":"\u003cp\u003e\u003cstrong\u003eThe refill for the Joshkas 20-Stage Shower Filter.\u003c\/strong\u003e Same 20-stage media stack as the one your filter shipped with. It drops into the housing you already have on your shower arm — you are not replacing the filter body, only what is inside it.\u003c\/p\u003e\n\n\u003ch2\u003eWhen to change it\u003c\/h2\u003e\n\u003cp\u003eEvery \u003cstrong\u003e3 months\u003c\/strong\u003e under normal use — roughly two showers a day. Change it sooner if your water is hard, if you have more than two people using the shower, or as soon as the media goes from off-white to grey-brown. That colour change is the cartridge telling you it is full.\u003c\/p\u003e\n\n\u003ch2\u003eHow to swap it\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eTurn the water off at the tap.\u003c\/li\u003e\n  \u003cli\u003eUnscrew the filter housing from the shower arm by hand.\u003c\/li\u003e\n  \u003cli\u003eTake the old cartridge out and put the new one in, the same way round.\u003c\/li\u003e\n  \u003cli\u003eScrew the housing back on. Add a turn of plumber's tape to the threads if it ever dripped before.\u003c\/li\u003e\n  \u003cli\u003eRun the shower for 30 seconds before you get in — the first water carries loose carbon dust and runs grey. That is normal.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003eTwo minutes. No tools, no plumber.\u003c\/p\u003e\n\n\u003ch2\u003eWhat's in the box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × 20-stage replacement cartridge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe housing, the washer and the plumber's tape came with your original filter and are reused. If you have not bought the filter yet, start with the \u003ca href=\"\/products\/15-20-stages-high-output-shower-water-filter-remove-chlorine-heavy-metals-filtered-showers-headhower-head-soften-for-hard-water\"\u003e20-Stage Shower Filter\u003c\/a\u003e — it ships with its first cartridge already installed.\u003c\/p\u003e\n\n\u003ch2\u003eQuestions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eDoes it fit my filter?\u003c\/strong\u003e\u003cbr\u003eIt fits the Joshkas 20-stage shower filter. It is not designed for another brand's housing — if you own a different filter, check its own refill.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy does the water run grey for the first few seconds?\u003c\/strong\u003e\u003cbr\u003eLoose carbon dust from a fresh cartridge. Run the shower for 30 seconds and it clears.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I rinse the old one and reuse it?\u003c\/strong\u003e\u003cbr\u003eNo. The media binds what it captures — rinsing does not release it, it only pushes it further in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat if I forget to change it?\u003c\/strong\u003e\u003cbr\u003eThe filter keeps flowing, it just stops filtering. That is why the colour matters more than the calendar.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat if it doesn't fit?\u003c\/strong\u003e\u003cbr\u003e30 days to return it, 90 days of warranty coverage.\u003c\/p\u003e","brand":"Joshkas","offers":[{"title":"Default Title","offer_id":46517485404257,"sku":"14:496#20 Stage Filter","price":29.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0639\/9685\/4369\/files\/f3a0ce58-2d03-4713-89e8-0c1aad1a68cd_resize.jpg?v=1788493984","url":"https:\/\/joshkas.com\/products\/shower-filter-replacement-cartridge","provider":"Joshkas","version":"1.0","type":"link"}