We believe that we make the best pumps, in their class, in the world, period.

Strong Statement? Yes, and we can back it up.

Our manufacturing processes are second to none. We don't use one seal or wet end across our product line, we use custom wet ends and seals tailored to the application.

Our seal technology is unmatched and we have created the Diamond Tech Seal Series to provide the best possible seal type for the job. From the Diamond Tech 1 Seal for fresh water to the Diamond Tech 4 Seal for highly abrasive water, nothing comparable exists in it's class. The wear tests on the Diamond Tech 4 Seal show that they will probably out last the motor.

Our motors are supplies by Emerson Electric Motor Co. and we have some that are running after 18 years. These motors, coupled with the Diamond Tech Seas make an unbeatable product.

For an in depth look at the products, take a look at our All About Seals page.

IMPORTANT INFORMATION ON PUMP SELECTION

1) Consider the type and purity of the water being pumped. Remember, most all marine water is abrasive and an abrasive marine seal is worth every penny. The service life is incomparable and the pay back comes with the first seal wear replacement, in seal cost and inconvenience.

For extreme service life Dolphin recommends always choosing abrasive proof seals for marine and sandy fresh water unless they are not available in the pump desired.

Our Crane type stainless non abrasive marine water seals are produced for CLEAN marine seawater, they do not offer the long service life of the Crane abrasive marine seal or the extreme service life of the Diamond Tech 3 seal, and the world’s best marine/reef pump is the Diamond Tech 4 seal.

All aspects of Diamond Seal Pumps surpass magnetic drive pumps. For maximum efficiency in current draw and service life, pumping the harshest reef water, the Diamond Tech 4 pumps are the holy grail for the Reef Aquarium industry. The Amp Master Pumps are all silent and cool running.

2) Energy Usage. Always choose the flow you need from the middle of the performance curve and always plumb in a closed return loop using the largest pipe size available for best efficiency.