Compatible Models: This A-20215 lid fastener is compatible with Fluval FX2 (A213), FX4 (A214), FX5 (A218), and FX6 (A219) canister filters replacement parts, serving as a replacement for the filter top lid locking nut
Leak Prevention & Stability: Canister filter lid fastener securely hold filter lid in place to prevent leaks and keep filters tightly sealed and stable during operation.Suitable for Fluval FX2 FX4 FX5 FX6 filter accessories replacement
Enhanced Filter Performance & Safety：This filter lid locking nut helps maintain filter stability, reducing performance degradation caused by loose or damaged parts during operation, improving safe performance
Durable material：Constructed from reinforced ABS plastic with a stainless steel insert, offering durability against pressure and corrosion. It supports systems compatible with Fluval FX2 FX4 FX5 FX6 filter replacement lid fastener
Easy Installation：Turn off the filter and unplug the power. Remove the old lid knob and clean the contact surfaces, Align the new one with the mounting hole, tighten it.Restart the filter and check for any leaks
