For clear, fresh drinking water, there's no better choice than National's Betta Flo lead free 4" submersible pumps. Powered by Franklin Electric Motors, they're easy to install and offer consistent performance over a long pump life.

To prevent vortexing and premature check valve failure, they feature a stainless steel discharge head with an external check valve and a cast mounting port for submersible safety cable.

For permanent positive up-thrust protection and increased pump life, the case hardened steel cone point set screw, preadjusted at the factory, prevents impeller drag at startup and low head applications.

Extra large graphite-impregnated bronze bearing runs cool and quiet while providing perfect shaft alignment.

Stainless steel threaded tube provides corrosion resistance and long life. O-ring gasket provides positive seal between discharge head and tube.

Highly efficient Noryl diffusers provide for larger diameter impellers.

Stainless steel locking nut permanently locks pump stack so that impellers do not float, lengthening pump life, reducing sand damage and allowing quiet, smooth operation.

We look forward to developing a strong relationship of trust with you through high professional standards and reliable customer service. We would like the opportunity to assist you in achieving your goals and objectives. Before you design your next pumping system, talk with a National Pump expert and take advantage of the knowledge and experience we have to offer.