Johnson Pump - Aqua Twinport Aerator Pump Flex Mount 500GPH 12V 6 Months The other is a sacrificial

The other is a sacrificial media that reacts well in a low pH environment but tends to over-correct

5 gallon per minute flow rate

The MBJ-40-50 contains no glues or additives which could foam

Replaces discontinued 10-0180A ballast

Features: The HF40 Replacement Filter was formerly labeled as Aqua-Pure HF40

Johnson Pump - Aqua Twinport Aerator Pump Flex Mount 500GPH 12V 6 Months The other is a sacrificialThe Aqua O2 Twin Port Aerator Pump delivers high efficiency, easy maintenance, and versatile installation for both livewell and washdown applications. Featuring a quick change motor cartridge and dual port inlet, it allows one intake to serve two systems, saving space and simplifying setup. Features: 500 GPH capacity (585 GPH straight, 12V) Dual port inlet for livewell and washdown with one intake 360 rotatable discharge Quick change, upgradable motor