Description The High Performance WhisperFlo Pump is made with 40% glass-filled thermoplastic and the patented Cam and Ramp see thru lid design. This self-priming, high flow pump with patented Funnel-Flo diffusers and 2 in. suction and discharge ports is built to last. The see thru lid and extra large trap mean fewer and easier cleanings. With its whisper quiet operation and heavy duty, durable construction, the WhisperFlo pump will deliver years of dependable service.