Effortless filtration with Reef Diaper filter sock elements Nobody enjoys washing filter socks. Reef Diaper disposable filter sock elements offer a simple, hygienic alternative by letting you replace the filter element while reusing the top flange assembly. This 60-pack ensures you have a steady supply, and the flange itself can be purchased separately or as part of a starter kit. Swapping in a fresh element is quick, clean, and designed to fit neatly with standard 4-inch flange assemblies. Key benefits at a glance Filter elements only: you replace the element, not the flange, keeping maintenance straightforward. Fast, mess-free swaps: install a new element in seconds and resume routine tank care. High filtration area: pleated design delivers over 300 square inches of surface area for strong capacity. Competitive performance: comparable capacity to a 200 micron felt sock, with lower ongoing costs. Versatile for freshwater and saltwater Designed to work across both freshwater and saltwater setups, the Reef Diaper system offers a practical, low-cost alternative to bulkier roller filters. This approach supports ongoing nutrient management without adding clutter to your sump. Usage and maintenance tips Replace the filter element twice weekly for steady filtration and reduced sludge buildup. The top flange assembly remains in use; simply swap the element when needed. Store replacement elements in a cool, dry place to preserve performance and longevity. With a simple swap and a compact footprint, Reef Diaper filter sock elements make routine tank maintenance faster and more predictable, giving hobbyists a practical path to cleaner water and more time to enjoy their aquariums. FAQ Q: What is included in the Reef Diaper disposable filter sock replacement Elements 60 Pack? A: A 60-pack of replaceable filter elements designed for 4” flange assemblies; top flange sold separately or with the starter kit. Q: How often should I replace filter socks for best results? A: Replace the filter elements twice weekly to maintain steady filtration and reduce buildup.