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Technical Support: 800.861.8758 (M-F 7:30 a.m. - 5:00 p.m. CST)
Temperature Range: 40–100°F (4.4–37.8°C)
Pressure Range: 30–125 psi (2.1–8.62 bar)
Service Flow Rate @ 60 psi (4.1 bar): 0.6 gpm (2.3 L/min)
Rated Service Life: 1,000 gallons (3,785L)
Dimensions: 9.18 in. x 4.70 in. x 12.72 in.
(233 mm x 119 mm x 323 mm)
Weight: 6 lbs. (2.7 kg) (ﬁlled with water)
• Filter system with ﬁlter cartridges – P-250 Cartridge Set
• Installation hardware
(mounting screws, T-Adapter, quick-connect elbows)
• Electronic monitor and 9-volt battery
• Housing wrench
• Lead-free drinking water faucet
• 1/4" plastic tubing
Do not use with water that is microbiologically unsafe
or of unknown quality without adequate disinfection before or after
the system. Systems certiﬁed for cyst reduction may be used on
disinfected waters that may contain ﬁlterable cysts.
Filter must be protected against freezing, which can
cause cracking of the ﬁlter and water leakage.
The rubber O-ring provides the water-tight seal between
the cap and the bottom of the housing. It is important that the O-ring
be properly seated in the groove below the threads of the housing or a
water leak could occur.
Because of the product’s limited service life and to
prevent costly repairs or possible water damage, we strongly
recommend that the bottom of all plastic housings be replaced every
ten years. If the bottom of your housing has been in use for longer
than this period, it should be replaced immediately. Date the bottom of
any new or replacement housing to indicate the next recommended
Tools and Materials
• Safety glasses
• Hand or electric drill
• 1/4" drill bit
• Phillips head screwdriver
• Adjustable wrench or 7/16”
• Tube cutters or utility knife
If sink does not have hole
for separate faucet:
• Center punch
• 3/4" drill bit or hole saw
• For cold water use only.
• Make certain that installation complies with all state and local
laws and regulations.
• The contaminants or other substances removed or reduced by
the selected cartridge are not necessarily in your water. Ask your
local water municipality for a copy of their water analysis, or have
your water tested by a reputable water testing lab.
• After prolonged periods of non-use (such as during a vacation) it
is recommended that the system be ﬂushed thoroughly. Let water
run for 5–6 minutes before using.
• The ﬁlter cartridges used with this system have a limited service
life. Changes in taste, odor, and/or ﬂow of the water being ﬁltered
indicate that the cartridge should be replaced.
About Your PENTEK Dual Filtration
Thank you for purchasing a PENTEK Dual Filtration System. With only
minimal maintenance, your new system will provide you with safer,
better-tasting water for years to come. The ﬁlter cartridges should be
changed after every 1,000 gallons of use or once every twelve months,
whichever comes ﬁrst. Filter life will vary depending on usage and
water conditions. Changes in taste, odor, and/or ﬂow of the water
being ﬁltered indicate that the ﬁlter cartridges should be replaced.
The Model US-1500 is Tested and Certiﬁed by NSF
International against NSF/ANSI Standard 42 for the reduction
of Taste and Odor, Chlorine, and Particulate Class I. Standard
53 for the reduction of Lead, Mercury, VOC, Cyst, Asbestos,
Monitored Dual Filtration System
Installation and Operating Instructions
Model US-1500 (with electronic monitor)