Wayne Cdu800 Submersible Sump Pump, Cast Iron, 1/2 Hp, 4200 Gph

The Wayne CDU800 is a 1/2 HP cast iron submersible sump pump that rapidly removes standing water to prevent basement flooding. With a maximum flow rate of 4,200 GPH at zero feet of head, this pump delivers the high-volume water removal needed during heavy water events.

This fully submersible pump features a durable cast iron base paired with an epoxy-coated steel motor housing for corrosion resistance in wet environments. The integrated vertical float switch automatically activates the pump when water levels rise, providing hands-free operation without manual intervention. Installation takes approximately 15 minutes with no plumbing modifications required, making it an accessible solution for homeowners seeking quick water removal.

Features and Benefits

• Top Suction Design: Eliminates air locks and minimizes clogging from debris in the bottom of the sump pit.
• Vertical Float Switch: Tested to 1 million cycles for reliable, long-lasting automatic operation that activates when water levels rise.
• 1-1/2 Inch NPT Discharge: Connects directly to existing plumbing systems and meets building code requirements without additional adapters.
• Quiet Operation: Delivers efficient, ultra-quiet performance ideal for residential basements and living spaces.
• Corrosion-Resistant Construction: Cast iron volute and epoxy-coated steel housing with stainless steel fasteners withstand harsh, wet sump pit conditions.
• Quick Installation: No weep hole drilling or complex modifications needed; ready to operate in about 15 minutes.
• US Assembly: Assembled in the USA with domestic and foreign parts, backed by a 3-year warranty.

Specifications

• Brand: Wayne
• Model: CDU800
• Motor: 1/2 HP
• Voltage: 120 V, single-phase
• Amperage: 10 A
• Maximum Flow Rate: 4,200 GPH at 0 ft head
• Maximum Head: 20 ft
• Discharge Size: 1-1/2 in NPT
• Base Material: Cast iron
• Motor Housing: Epoxy-coated steel
• Fasteners: Stainless steel
• Float Switch: Vertical, integrated
• Sump Basin Size: For 11 in diameter or larger basins
• Activation Level: 9 in ON / 4 in OFF
• Dimensions: 9 x 9 x 12 in
• Weight: 12 lb
• Warranty: 3 years
• Use: Indoor, fully submersible