{"product_id":"replacement-filter-cartridge","title":"Solen Replacement Filter Cartridge","description":"\u003cp\u003e\u003cstrong\u003eOne cartridge lasts about three months at two showers a day.\u003c\/strong\u003e A cartridge has no visible end of life, which is exactly why people run them for a year and quietly lose the result. That is what the test strips in your box are for — when the strip starts reading high again, change it.\u003c\/p\u003e\n\u003ch3\u003eWhich pack\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOne\u003c\/strong\u003e — a single change. Fine if you want to see the strip move first.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo\u003c\/strong\u003e — six months. Most people take this one.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFour\u003c\/strong\u003e — a full year, and no decision to make until next summer.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFits every Solen head, rainfall and handheld. Changes in under a minute with no tools: unscrew the collar, drop the old one out, drop the new one in.\u003c\/p\u003e\n\u003cp\u003eFree strip refills ship with every multi-pack.\u003c\/p\u003e","brand":"Solen","offers":[{"title":"One cartridge — 3 months","offer_id":54578634785111,"sku":"SLN-CART-1","price":22.0,"currency_code":"GBP","in_stock":true},{"title":"Two cartridges — 6 months","offer_id":54578634817879,"sku":"SLN-CART-2","price":34.0,"currency_code":"GBP","in_stock":true},{"title":"Four cartridges — 12 months","offer_id":54578634850647,"sku":"SLN-CART-4","price":56.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1038\/4870\/6391\/files\/629F58B4-EAD8-4763-9DCF-733D2865FD6C.png?v=1787438802","url":"https:\/\/solenbase.com\/products\/replacement-filter-cartridge","provider":"Solen Base ","version":"1.0","type":"link"}