SHURFLO
®
AQUA KING
™
II FRESH WATER PUMPS
PREMIUM 4.0 GPM AND SUPREME 5.0 GPM
MODEL SERIES 4148 & 4158
911-1026 REV. F 1
The NEW SHURFLO AQUA KING™ II delivers smooth and high-powered fl ow.
SHURFLO’s New 4148 and 4158 series fresh water pump design was created with unique over-molded single-piece diaphragm
and internal by-pass, assuring long life and top performance in all plumbing systems. Designed as the next legendary pump to
exceed the expectations of our customers, the 4148 and 4158 series pumps are constructed for high fl ow demand, smooth fl ow
and no rapid cycling. Our quality reputation has been built on the reliability and dependability of every pump we build. The 4148
and 4158 series fresh water automatic demand pumps are quiet, thermally protected and can run dry without damage.
INSTALLATION TIPS
❚ Properly sized plumbing
❚ Mount on a solid surface within 6 feet
of tank
❚ Properly sized wiring
❚ Use proper fuse size
❚ Install strainer on pump inlet
❚ Dry and accessible location
❚ Minimize plumbing elbows and valves
❚ Flexible high-pressure hose on inlet
and outlet
OPERATION TIPS
❚ Do not adjust switch or bypass set-
tings without contacting customer
service
❚ Pump is designed for intermittent
operation only
❚ Turn off power to the pump when boat
is unattended
❚ Keep your strainer clean for ultimate
pump performance
❚ Do not use pump for Reverse Osmosis
fi ltration system
APPLICATION
❚ Marine 12V DC or 24V DC fresh water
systems—see pump label for rated
voltage
❚ Multi-Fixture, up to 4 fi xtures
❚ General fresh water transfer
❚ Pressurized water systems in cabins
FEATURES
❚ 4 independent chambers
❚ Co-Molded diaphragm
❚ Adjustable switch and by-pass
❚ Self-priming up to 6 feet
❚ Dry run capability
❚ Sealed switch
❚ Sealed motor
❚ Corrosion resistant electro coated
motor
❚ Thermally protected
❚ Ignition protected, CE
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