Installation Guide

Product Specifications
Model
US21B
Flow Rate
3 - 15 GPM
Peak Flow Rate
15 GPM
Minimum Working Pressure
40 psi
Maximum Working Pressure
90 psi
Operating Temperatures
40-100 ºF (4 - 37 ºC)
pH Range
2 - 11
Component List
Part Description Qty
System Bracket with
Caps
Metal bracket with 1'' NPT inlet / outlet
Black caps
1
Housings
Big Blue Housing
Model # HB18B
2
Cartridges
1
st
stage GAC carbon filter /2
nd
stage CTO carbon block
Model # FGKS15B/ FC15B
2
Wrench
Housing Wrench
Model # AWR3
1
Plumber’s Tape
Plumber’s Tape
Model# ATAPE
1
Installation Kit
16 inch 1'' MNPT X 3/8” MNPT push-fit hose X1
16 inch 1'' MNPT X 3/8” FNPT push-fit hose X1
Model#78014-24 and 78015-24
2
Recommended Tools and Equipment
Safety glasses Hacksaw
Towels Soldering iron or torch
Flat head screwdriver Adjustable wrench
Medium Crescent wrench Teflon tape