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Black rectangular basin pump system with integrated piping and motor housing

Liberty

Liberty 404 Sink Pump System 4.3 Gal 115V

SKU CH-3HYK-WE7XZ MPN 404

A 4.3-gallon automatic sink pump system with 1/3 HP motor for basement wastewater drainage at 115V

  • Product typeDrain Components
  • Product colorBlack
  • Handles basement drainage where gravity fails with automatic 4.3 gal basin system
  • 1/3 HP pump moves sink, tub and washer wastewater reliably at 115V
  • Complete kit includes basin, pipe and pump for straightforward installation
  • Automatic piggyback switch activates pump only when basin reaches fill level
  • Liberty 404 model built for continuous below-grade plumbing applications

Sink Pump System for Below-Grade Drainage

The Liberty 404 sink pump system handles wastewater from sinks, tubs, and washing machines where gravity drainage is impossible. It is designed for basements or other areas below the main sewer line. The system includes a basin, pipe, and a 1/3 HP pump for automatic operation. It suits homeowners and contractors needing reliable below-grade drainage.

Electrical and Plumbing Compatibility Check

Verify that a 115V power supply is available at the installation site for the 5A pump motor. Confirm the basin capacity of 4.3 gallons fits the intended fixture load and local code requirements. Ensure the discharge piping can connect to the existing vented drainage system. Check that the piggyback switch arrangement matches the planned control setup.

Integration Into a Basement Drainage Build

The unit sits in a sump basin and activates automatically when wastewater fills the tank. It frees the installer from cutting into the main sewer line for gravity fall. The package supplies the basin, pump, and piping so no separate component sourcing is needed. A check valve may be required to prevent backflow into the basin.

How it compares

Measured against everything we stock in Drain Stoppers, Strainers & Traps, at today’s prices. Recalculated every night.

Price $241.99
Pricier than about 87% of the 4,240 comparable items (median $31.99).

Specifications

Product
Brand nameLiberty
Model name404
Product typeDrain Components
Product colorBlack

Questions about this item

Does the Liberty 404 system include the basin, pump, pipe and check valve, or must any of those be purchased separately?

The Liberty 404 system includes a basin, pipe, pump and sometimes a check valve, so the core components are supplied together and no separate purchase is required for basic installation.

How do I decide between the 4.3 gallon basin and other Liberty basin capacities for my basement laundry and sink drainage?

Choose the 4.3 gallon basin when you need a compact system that fits tight basement spaces and handles intermittent sink, tub or washing machine discharge without frequent pump cycling.

What does the 115 V, 1/3 HP rating mean for real-world pumping performance in a below-grade installation?

The 115 V, 1/3 HP motor draws 5 A and provides enough head pressure to lift wastewater from a basement basin up to the main sewer line during automatic drain cycles.

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