Additional Details ------------------------------ Bullet point: COMPATIBLE WATER FILTERS: This pack includes four 20" x 4.5" sediment replacement filters that are fully compatible with Pelican Water systems & other whole house filtration systems. Designed for easy water filter replacement, these 5-micron sediment filters effectively reduce sediment, sand, silt, & rust, ensuring cleaner, clearer water throughout your house. The pack also includes four high-quality O-rings, ensuring a secure & leak-free fit for optimal performance in water purification. Product description: Pack of 4 filters by IPW Industries Inc. These filters are compatible 20" x 4.5" Big Blue String Wound 5 Micron Filters. They are compatible with the Pelican Water systems. The Pelican brand name and logo are the registered trademarks of their respective owners. Any use of the brand name or model designation for this product is made solely for purposes of demonstrating compatibility.