Neptune Apex Dos Replacement Head

Direct OE replacement fluid metering head assembly for the Neptune DOS Fluid Metering System. The easy to install head replaces the tubing, roller, and plastic housing head cap.

• Installs in minutes
• Replaces wearable tubing

When your Neptune DOS pump's metering head begins to show signs of wear—such as increased motor resistance or degraded tubing performance—this replacement assembly restores reliable fluid delivery. The kit includes a new head housing, roller assembly, and tubing, designed for straightforward installation. Simply release the side clips on your existing head, lift it away, and slide the new assembly into place until the clips engage. Verify smooth operation using the manual priming buttons. Ideal for maintaining consistent dosing accuracy in your aquarium system.