The Ultimate Shower Upgrade

• Pure Blue shower filter refill cartridges ensure your shower water remains pure and 98% chlorine free.
• ​​Last 3 times more than other shower filters (6-month average filter cartridge lifespan based on 2 showers per day).
• Truly eliminates hard water by using American KDF 55 and Japanese calcium sulfate mixture.
• Compatible with our Pure Blue shower filters only

Your filter cartridge change will depend on how many people use the filter, how long the average shower is in your household, as well as the quality of water in your area. Generally, your filter cartridge can last up to 5-6 months, based on 2 daily showers (shorter than 6 minutes) or 40,000 liters of water (depending on which comes first).

• Lasts up to 3 months (3 people)
• Lasts up to 4 months (2 people)
• Lasts up to 5/6 months (1 person)

Pure Blue also offers a subscription to have your cartridges delivered to your doorstep on time at a 10% discount, as well as a bundle offer when you purchase 3 together.

• Twist off the shower filter.
• Unscrew the top or bottom cap.
• Swap your used cartridge with the new refill cartridge.
• Reattach the shower filter onto your tap.

Your Pure Blue cartridges are made to be as sustainable as can be. We’ve designed the top mesh to be easily removable after use. Simply pop it off, empty the contents, and to the plastic casing in the recycling bin. You can also use our biodegradable cartridge contents as a fertilizer!