Open case and ihlas water purification filter e 4-piece set. a maximum of 10 units of this product can be ordered. swordslife reserves the right to cancel orders of more than 10. more than 50 items are available for sale at the promotional price. purchase the retail price of the product you reviewed. the stated price is valid until March 19, 2026. Improved version for clearer understanding and better search visibility. Suitable for users seeking detailed and reliable product information.