The Liberty 404 represents specialized engineering for basement remodeling projects requiring wastewater removal where conventional gravity drainage proves impossible. This MPN 404 model delivers factory-assembled efficiency through its distinctive 11-1/8 inch height profile, enabling installation in constrained cabinet spaces beneath bar sinks, laundry trays, and utility fixtures throughout residential basement environments. The 1/3 horsepower hermetically sealed motor configuration paired with the 13-3/4 inch diameter polyolefin basin creates a compact footprint specifically dimensioned for tight under-counter installations. Liberty Pump engineered this 404 system with integrated 1-1/2 inch FNPT inlet, discharge, and vent connections molded directly into the corrosion-resistant basin structure, eliminating traditional threaded adapters while providing superior gas-tight sealing capabilities for gray wastewater pumping applications. MPN 404's 11-1/8 Inch Low Profile Basin Design Enables Under-Cabinet Installation Without Fixture Relocation The Liberty 404's defining dimensional characteristic centers on its precisely engineered 11-1/8 inch total height measurement from basin base to top cover. This abbreviated vertical profile differentiates the MPN 404 from standard residential sump configurations measuring 18-24 inches tall, creating installation possibilities in 12-inch cabinet depth scenarios where conventional sewage pumps physically cannot fit. The 13-3/4 inch basin diameter provides 4.3 gallon holding capacity while maintaining the compressed height specification, with the polyolefin construction featuring ribbed external reinforcement preventing deformation under installation pressures. Liberty's design team positioned the motor housing within the basin envelope rather than extending above it, achieving the compact profile through vertical integration of pump components. The float switch mechanism operates within a 5-inch activation range between 3-1/4 inch off-level and 8-13/32 inch on-level, optimized for the shallow basin depth while preventing rapid cycling during normal gray water flow from washing machines, bar sinks, and laundry applications. This specific height dimension solves critical installation challenges in basement finishing projects where existing plumbing stacks sit above fixture drain elevations. Contractors installing wet bars in finished basements with 8-foot ceiling heights frequently encounter situations where gravity drain lines run horizontally at 4-5 feet above floor level, yet cabinet depths measure only 24 inches with 12-inch clearance beneath sinks. The Liberty 404's 11-1/8 inch measurement permits placement within these constrained spaces without requiring cabinet modification or sink elevation changes. The compact polyolefin basin fits entirely within standard 24-inch deep base cabinets while accommodating the required 1-1/2 inch discharge piping, check valve installation, and service access clearances. Liberty engineered the MPN 404 specifically for scenarios where the alternative involves either abandoning the fixture installation or executing expensive structural modifications to lower drain line elevations throughout basement areas. QuickTree Technology Provides Tool-Free Float Switch Access Without Disconnecting 1-1/2 Inch Discharge Plumbing The Liberty 404's proprietary QuickTree access system incorporates a removable inspection cover integrated into the basin top assembly, enabling float switch servicing without plumbing disconnection. This MPN 404 feature positions a separate access port directly above the tether float mechanism, secured by a hand-tightened threaded cap that removes without requiring wrenches or specialized tools. The QuickTree design allows homeowners and service technicians to extract the piggyback float switch assembly for inspection, cleaning, or replacement while the 1-1/2 inch discharge line, check valve, and vent stack remain connected and sealed. Liberty's engineering separated the switch access pathway from the primary plumbing connections, recognizing that float switch maintenance represents the most common service requirement for drain pump systems operating in lint-bearing laundry applications. The integrally molded rubber gasket surrounding the QuickTree access port maintains gas-tight sealing even after repeated removals,
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