As the name suggests, Submersible pumps are an ideal choice for ground water extraction. They need not be primed before operations which save time and efforts. When it comes to pumps, CRI is one company which over the years has provided with the highly-efficient pumps to the customer. The company provides with a wide range of submersible pumps. The main components of CRI 1.5 HP Submersible Pump are thermoplastic impellers, diffusers and an inbuilt check valve. These are made up of corrosion resistant material. The pump is hermetically sealed with the electric motor to operate underwater. This is a water filled motor type bore which means the coolant can be replenished once exhausted making it a better choice than oil filled submersible pumps.