Waterpik WP-660 Aquarius - 22-Ounce Reservoir and 10 Settings

Waterpik WP-660 Aquarius is a corded countertop water flosser with a 22-ounce reservoir, seven included tips, and 10 pressure settings. Its 120VAC/60Hz electrical design identifies the North American version, while a one-minute timer and 30-second pacer structure each session.

Core Features And Specifications

The WP-660 delivers 1,400 pulses per minute and a stated flow rate of 13 ounces per minute. Its covered reservoir holds 22 ounces and supports 90 seconds of operation, according to Waterpik's WP-660 specifications.

The package includes seven flossing tips and a 360-degree rotating tip handle. The unit also provides Floss and Hydro-Pulse Massage modes, an on-off water control on the handle, and an LED information panel.

Size Power And Warranty

The appliance measures 10.35 inches high with the tip or brush, 4.70 inches wide at the base, and 3.80 inches deep. Unit weight is 1.46 pounds, and the electric cord measures 52 inches.

The North American model uses a corded electric power source rated at 120VAC/60Hz. Waterpik lists a three-year limited warranty and a $99.99 MSRP for the WP-660, while its direct comparison shows the Aquarius Professional WP-670 at $109.99, a $10 higher listed price for that alternative.

Where The WP-660 Fits

Waterpik positions the WP-660 as a countertop water flosser rather than a portable cordless device. Compared with the Waterpik WF-100 Ultra, the WP-660 retains the same 22-ounce reservoir, 10 pressure settings, 1,400 pulses per minute, and 13-ounce flow rate, but adds the Hydro-Pulse Massage mode, timer, pacer, and LED indicator shown in Waterpik's model comparison.

The 120VAC/60Hz requirement limits the model to North American electrical systems without appropriate power equipment. The 1.46-pound unit weight, 10.35-inch height, and covered 22-ounce reservoir define it as a bathroom-counter appliance with a larger footprint than a cordless flosser.

Verdict For Countertop Use

The WP-660 suits users who want adjustable water pressure, a large reservoir, multiple tips, and a built-in timer from a corded countertop unit. Its main constraints are the North America-only electrical rating and the need for dedicated counter space.