ESP Aquatec DDP 5800 RO Delivery Demand Pump – 0.7 GPM, 3/8-inch Quick Connect, 120V

Overview

Meet the ESP Aquatec DDP 5800 RO Delivery Pump, a compact booster designed to support tank-based reverse osmosis systems. When city water pressure dips, this unit delivers a targeted boost to help your filtration setup maintain a steady flow. The design focuses on delivering reliable performance on demand, with energy efficiency and a minimal footprint that fits under most RO cabinets.

How it works and what to expect

The pump employs a durable three-chamber diaphragm design that can deliver up to 70 PSI, providing up to 0.7 GPM to keep RO lines flowing at a steady pace. A built-in pressure switch activates only when downstream pressure drops, which helps reduce energy use while keeping noise to a quiet hum during operation.

Installation and compatibility

• Push-to-connect ports for 3/8-inch tubing enable quick, tool-free connections for a straightforward DIY setup.
• Includes a 60 PSI pressure switch and a 6-foot, 3-prong power cord for plug-in operation right out of the box.
• Compact and quiet by design, it fits alongside many tank-based RO systems without drawing attention.

Performance notes and practical use

• High-flow capability of 0.7 GPM supports consistent water delivery to the RO unit, which can help filtration performance during periods of higher usage.
• Energy efficiency comes from on-demand operation rather than a constant run, potentially reducing power draw over time.
• Compatibility: works with most tank-based RO systems that use 3/8" OD tubing and are within the pump’s inlet pressure range, with a 115 VAC outlet for the power cord.
• Temperature guidance: rated for room-temperature water; not intended as a hot-water recirculation pump.

Real-life scenario: In a compact kitchen RO setup, the Aquatec 5800 can help maintain a reliable flow when incoming pressure fluctuates. Its small footprint makes it easy to tuck behind a storage tank, and the quiet operation keeps a calm atmosphere in the cabinet or utility area.