One Stage 20"X4.5" Big Blue with pressure release, 1" NPT Ports.
One Stage 20'X4.5' Big Blue with pressure release, 1' NPT Ports.

One Stage 20"X4.5" Big Blue with pressure release, 1" NPT Ports.

CAD $165.00
Part Number: 103191
In Stock

Choose Options

Add a Filter
no filter
5 Micron Sediment Filter P# 104112 (28.00)
10 Micron Pleated Sediment Filter P# 104117 (34.00)
CTO Carbon Block Filter - 5 Micron P# 104114 (52.00)
DI Filter P# 104143 (85.00)
Cation Filter P#104120 (60.00)
Iron Filter p# 104121 (100.00)
Anion Filter P#104159 (125.00)
Anti-scale Filter P#104132 (110.00)
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Detailed Description:

2-Stage 20"x4.5" Whole House Big Blue Water Filtration System with 1" NPT Ports

NOTE: Please select the filter type you would like. By default, this system does not include a filter.

Are you concerned with the quality of the water at your cottage or lake house? Get clean and clear water for your whole house with our 1-stage Whole House system, perfect for homes, cottages and offices.


  • 1 x 20" x 4.5" Big Blue Double O-ring Filter Housing with Pressure Release Button.
  • 1 X Wall Mounting Metal Bracket.
  • 1 X Filter Housing Wrench.
  • 1-year manufacturer's limited warranty.


  • Less than 1 PSI pressure drop @20GPM
  • Maximum operating pressure: 90 PSI
  • Operating temperature: 40-100°F (5-40°C)
  • Dimensions: 27.5" Height x 8" Width x 10" Depth
  • Weight: Approx 17 lbs.
  • Feedwater pH range: 4.0-10.0
  • Preferable feed water pressure range: 50-70PSI to get the best filtration results keeps it at  60 PSI.
  • Maximum feed water TDS: 1000 PPM, if Iron exists should be less than 4 PPM for Iron filter choice.
  • Flow Rate (GPM)
    • 1-40* GPM for 1" Inlet/Outlet
    • 1-35* GPM for ¾" Inlet/Outlet


  • Electroplating, etching & image development process in PCB industry
  • Filtration of electroplating fluid in the conventional electroplating industry
  • Pre-filter of DI & RO water filtration system for industry
  • Filtration of low-viscosity fluids of chemical
  • Filtration of water for manufacturing processes & recycled water
5 Stars
Good filter housing and price
The filter housing and brackets are great. Great construction and was easy to install. I had to switch the bracket for in/out flow and that was easy to do. My only recommendation would be to offer this single housing in a 3/4" inlet and outlet ports. The 1" just resulted in more fittings.
Reviewed by:  from Alberta. on 8/15/2013

Filters/Parts for Item Number:103191

Sediment Filter 5 Micron,  Polypropylene, size 20
Average Rating(2)
42.00  35.00
Part Number: 104112
In Stock
Pleated Water Filter 10 Micron, size 20
Average Rating(1)
55.00  40.00
Part Number: 104117
In Stock
Big Blue 5 Micron Carbon Block (CTO) Water Filter - size 20
Average Rating(6)
78.00  55.00
Part Number: 104114
In Stock
Cation resin Water Filter Big Blue size 20
120.00  85.00
Part Number: 104120
In Stock
Big Blue Iron/Manganese Water Filter - size 20
195.00  165.00
Part Number: 104121
In Stock
165.00  145.00
Part Number: 104159
In Stock
185.00  155.00
Part Number: 104132
In Stock
175.00  150.00
Part Number: 104139
In Stock
Mixed Bed De-Ionization Water Filter size 20
Part Number: 104123
In Stock

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