SEATTLE, WA — (Marketwire) — 01/09/13 — has introduced a new high-performance folding for new and retrofit installations where tank entry is not practical or too expensive.feature a hydrofoil-style, 4-blade design that folds for easy installation and opens with centrifugal force; locking in place when fully opened. Eliminating the need for personnel to enter the tank, these are designed for new and retrofit installations that do not allow for impeller assembly inside of a tank.Available i
