I will ship it after taking it out of the box. [Health Maintenance] This water softening filter is designed to maintain the health of your cat's lower urinary tract. By softening the water, it supports urinary tract health. [Compatible Models] Compatible with various filters of 1.5L, 2.5L, 3L, and 3.5L, and can be used with various cat water dispensers. [Antibacterial Properties] Antibacterial polymer is used to provide clean water. It can be used for about 4 months, making it economical. - Brand: Pure Crystal - Product Name: Water Softening Filter - Quantity: 4 pieces - Usage Period: Approximately 4 months - Compatible Models: Compatible with 1.5L, 2.5L, 3L, and 3.5L filters - Features: Helps maintain lower urinary tract health - Antibacterial Properties: Uses antibacterial polymer Water softening filter that helps maintain lower urinary tract health, comes in a pack of 4 and can be used for approximately 4 months. - Quantity: 4 pieces - Purpose: Water softening filter - Features: Helps maintain lower urinary tract health - Compatibility: For water dispensers - Usage Period: Approximately 4 months Immediate purchase ◎