HRO Seafari Mini Compact Watermakers


The Mini Compact Watermakers is Ranging available from 170 to 750 Gallons of water per day, the Seafari Mini is the perfect solution for boats with little space to spare 170, 350, 550, 750. The Sea Recovery Aqua Whisper Mini Series are the smallest line of watermakers.  The low-hassle Aqua Whisper Mini is engineered to fit anywhere.  Measuring at about 2 – 3 cubic feet, sail and small power boaters have the opportunity and the convenience of a Sea Recovery watermaker without space restrictions.  Smaller than a 20 gallon water tank, yet able to produce between 170 – 750 GPD (644 – 2,839 LPD) in capacity, this desalinator is the perfect seaworthy companion for the solo cruiser.  Weighing at most, 130 lbs, the Aqua Whisper Mini is also more convenient than hauling around a full water tank that adds about 8 pounds per gallon to your boat.  To illustrate, if a 34 gallon tank was filled to capacity, that would create about 342 lbs additional weight to haul, which will put more stress on the engine, slow down speed, and increase fuel costs.  With the Aqua Whisper Mini, compact boaters will carry minimal weight, save space, and cruise without limits to any destination they wish.

Featuring a simple interface, with push button operation, the Aqua Whisper Mini can be monitored via the control panel or remote (optional).  Featuring unlimited features at your control, Semi-Automatic Functions, 6 illuminated LED status indication lamps for system operation, an optional weekly automatic fresh water flush  and sequential starting of electric motors with manual override, this watermaker is an ideal for small power and sail boats.

  • Product Water Produced per hour of operation: +-15% 850 psi / 56 Bar, 77°F / 25°C & 35,000 ppm TDS typical sea water
  • Salt Rejection (Chloride Ion): Minimum 99.2%, Average 99.4%
  • Product Water Temperature: Ambient to feed water temperature.
  • Salinity Monitoring: The salinity monitoring components of the system give a continuous readout in micromhos per cubic centimeter, are temperature compensated, and of a fail safe design.
  • Salinity Range: Designed for seawater use up to 50,000 ppm TDS (Nacl) (typical seawater salinity is 35,000 ppm.)
  • Temperature Range: Min. 33°F / .5°C Max. 122°F / 50°C
  • System Feed Water: Flow: 50Hz, 3.5 gpm / 13.2 lpm; 60Hz, 3 – 4.2 gpm / 11.4 – 15.9 lpm
  • Reverse Osmosis Membrane: High Rejection/High Yield aromatic tri-polyamind, thin film composite, spiral wound, single pass reverse osmosis membrane element.
  • Chlorine Tolerance: 0.1 ppm
  • pH Range: 3-11 (typical seawater pH is 8)
  • System Pressure:
    Feed Water
    Minimum: 6 psi / .41 bar / .42 Kg/cm2
    Maximum: 35 psi / 2.41 bar / 2.46 Kg/cm2
    System Operation
    Seawater @ 35,000 ppm & 77° F / 25° C
    Nominal: 850 psi / 56.5 bar / 57.66 Kg/cm2. (Brackish varies w/ppm)
  • External Installation Water Connections: Pipe sizes supplied by the installer for connection of Horizon Reverse Osmosis supplied components.
    Seafari Mini 170 & 350:
    Feed Inlet: 1/2″ MNPT (Male National Pipe Thread, Amer. Std)
    Brine Discharge: 1/4″ FNPT (Male National Pipe Thread, Amer. Std)
    Product: 1/4″ FNPT (Female National Pipe Thread, Amer. Std)
    Seafari Mini 550 & 750:
    Feed Inlet: 3/4″ MNPT (Male National Pipe Thread, Amer. Std)
    Brine Discharge: 1/2″ FNPT (Male National Pipe Thread, Amer. Std)
    Product: 3/8″ FNPT (Female National Pipe Thread, Amer. Std)
Mini 170 7 Gal / 26 Lit 170 Gal / 645 Lit
Mini 350 15 Gal / 55 Lit 350 Gal / 1,325 Lit
Mini 550 23 Gal / 87 Lit 550 Gal / 2,080 Lit
Mini 750 31 Gal / 117 Lit 750 Gal / 2,839 Lit


Mini 170 70 Lbs / 32 Kg
Mini 350 89 Lbs / 40.4 Kg
Mini 550 125 Lbs / 57 Kg
Mini 750 130 Lbs / 59 Kg
  • Electrical – High Pressure Pump Motor and Booster Pump:MIni 170 (HP Motor) :
    Phase Hz Voltage HP Running Amps Start Up Amps
    NA NA 12/24 0.33 27/13.4 90 / 45
    Single 50//60 110/230 0.33 6.6/3.3//5.2/2.6 26/13

    Mini 350 (HP Pump Motor):

    Phase Hz Voltage HP Running Amps Start Up Amps
    Single 60 110/230 1 12.8/6.4 39/20
    Single 50 110/230 1 12.4/6.2 37/19

    Mini 550 / 750:

    Pump Phase Hz Voltage HP Running Amps Start Up Amps
    HP Single 50/60 110/220//
    1.75//2.1 18.9/9.4//
    Booster Single 50/60 110/220 0.5 9.4/4.7-


• Low AC power Consumption
• DC power available for Aqua Whisper Mini 170


• Hour Meter for keeping accurate ship’s logs & schedule preventative maintenance.
• New solid state electronic flow meters for visual monitoring of the product water and feed water flow used to calculate production rates of the system
• Exclusive Solid Salinity Meter shows actual product water quality, an essential tool for product water monitoring
• Product water quality is displayed in bar graph format with 10 additional LEDs


• Fault LED indication is provided for easy diagnosis of required maintenance
• The Aqua Whisper Mini is shipped from the factory ready to install and function
• There are no optional items required, and a complete installation kit is also included along with a comprehensive and detailed Owner’s Operation & Maintenance Manual
• Worldwide Service and Sales Network for immediate attention regardless of location
• Technical service dedicated to excellent system performance
• With the most stable controller in the market, the Aqua Whisper Mini keeps up it’s reputation as the smallest, most reliable watermaker used by boaters around the world
• With better maintenance access


• Exclusive high efficiency booster pump for extended pre-filter life
• Quiet high pressure pump runs smooth and is free of pulsations
• Noise Reduction Features
• Including: The quiet stainless steel high pressure pump is specifically designed for sea water reverse osmosis applications. The unique design of this high pressure pump reduces noise level to a negligent hum
• Low noise manifold design
• Vibration isolation mounts included


• Dedicated heavy duty Magnetic Latching Relays for each motor integrated in the system
• 316 Stainless Steel Pressure Transducers for accurate measurement of system functions
• New High rejection / high yield membrane element that produces higher quality product water in a smaller space
• Fiberglass Reinforced High Pressure Membrane Vessel is stronger and eliminates corrosion


• A failsafe Product Water Diversion Valve
• Unique Low Voltage Control Circuitry, shielded terminals, and covered high voltage components for end-user safety
• Safety alarm features


• Push button remote control available
• A Soft Motor Starter is available for single phase AC powered systems that reduces start up power by 60%
• Clear viewable Sea Strainer with a cleanable Monel Mesh Screen filter for ultimate corrosion resistance and large particulate removal
• Optional – pH Neutralizer, and Automatic Fresh Water Flush

  • Extremely quiet, smooth, and with complete vibration isolation.
  • Exclusive Solid Salinity Meter, an essential tool for product water monitoring.
  • A failsafe Product Water Diversion Valve allows only safe drinking water to enter storage tanks.
  • High rejection, high yield, commercial grade, and chemical resistant Membranes.
  • Clear viewable Sea Strainer with a cleanable Monel Mesh Screen filter for ultimate corrosion resistance and large particulate removal.
  • Exclusive high efficiency Booster Pump
  • Micro Processor Controlled Electronics provide state of the art technology and reliability with weekly Automatic Fresh Water Flush Timing (optional).
  • Stainless Steel, liquid filled exterior and interior Pressure Gauges for accurate measurement of system functions and corrosion resistance.
  • Flow Meter for visual monitoring of the product water flow
  • All High Pressure Connections are composite 316L Stainless Steel for maximum corrosion and rust resistance.
  • Water Quality Indication LED

logo pdfHRO Watermakers Brochure

Weight 149 lbs
Dimensions 16 × 20 × 47 in

170, 350, 550, 750


, , ,




There are no reviews yet.

Only logged in customers who have purchased this product may leave a review.