Details: Robust thermoplastic with the Cam and Ramp See-Through Lid design. Self-priming, high flow with Funnel-Flo diffusers. 2 in. suction and discharge ports. The TEFC (Totally Enclosed Fan Cooled) motor is much more robust and corrosion proof than standard ODP (Open Drip Proof) motors. This commercial-duty motor construction does not allow ambient air to enter the motor; preventing corrosion from the inside out. The aluminum motor frame also has an anodized surface finish for increased corrosion-resistance and greatly improved service life. The motor design features heavy-duty sealed bearings and an ultra-strong aluminum fan for superior cooling; along with Class F insulation for compatibility with Pentair Aquatic Systems' Acu-Drive Variable Frequency Drives. TEFC Super-Duty pool pumps are an ideal choice for many continuous-duty commercial installations, especially those prone to coastal elements, harsh environments, and #34;up-time critical and #34; applications.