Universal 8-Inch Windmill Diaphragm Replacement – Compatible with Older Koenders & EL2 Models

This universal 8-inch rubber diaphragm replacement is designed to fit and function like the original diaphragm in select older Koenders windmill pond aerators and EL2 models. Check valves are not included.

This is an aftermarket replacement part—not an original factory/OEM component and not manufactured by or affiliated with Koenders. Please compare the diaphragm size and mounting pattern before ordering.

Remove the paragraph about purchasing “authentic and universal parts” and acquiring leftover inventory. It distracts from the product and could confuse customers.