Omni Water Filters //  Model OB5

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Whole House Water Filter - Model OB5

Medium Duty

Model TO1 Replacement Cartridge
Filter Type Carbon Wrapped
Reduces Rust and Sediments (Class I)
  Odor and Chlorine (Class IV)
Benefits Reduces chlorine and sediments that can damage clothing, appliances, and cause itchy skin.
Average Cartridge Life(1) 3 mos or 15,000 gal
Flow Rate(2) 5 gpm
Micron Rating(3) 5

Model OB5 is OMNI's basic whole house water filter for professional installers. The filter comes with the filter housing and a pressure release valve.
Filter cartridge and installation hardware
(sold separately)
The OB5 now comes with mounting bracket and wrench.
With its 3/4" NPT, the OB5 whole house water filter can be installed on standard plumbing pipe. 
Dimensions: 
Length: 11 1/2 inches 
Width: 5 1/4 inches
If you are a do-it-yourself-er, we recommend you install
Model U25 as your whole house system.  It comes complete with a filter cartridge and installation fittings.
Change the tank O-ring with every second filter cartridge change.
Also called OB5 or OB 5 whole house filter

Need Tank Wrenches or O-Rings? Click Here to Buy
Installation Information
Alternate Replacement Cartridges for the OB5 are:
RS1, RS2, RS3 or NEW! RS7, RS12, RS14

Omni Model OB5


TO1 Cartridge (Included)

PURCHASE NOW
$35.32

Shipping > $10.00
(Per Order)


  1. Usage and the quality of water at your incoming line determines when your cartridge should be changed.
  2. Gallons per minute.
  3. The smaller the micron, the finer the filtration.
Can't find the OMNI Filter you're looking for? Start Here:

Whole House | Under Sink | Counter Top/Faucet Mount | Fridge/Icemaker

Replacement Cartridge Options

RS1 | RS2 | RS3 | RS7 | RS12 | RS14

Model
RS1 Replacement Cartridge
(Not recommended for Well Water Use)
Buy The RS1
Filter Type Pleated Cellulose Paper
Reduces Rust
  Sediments
Benefits Our most affordable Whole House filter cartridge.
Average Cartridge Life(1) 3 mos or 15,000 gal
Flow Rate(2) 5 gpm
Micron Rating(3) 20
Model
RS2 Replacement Cartridge
Buy The RS2
Filter Type String Wound
Reduces Rust
  Sediments
Benefits The small micron size filters out very small rust and sediment particles.
Average Cartridge Life(1) 3 mos or 15,000 gal
Flow Rate(2) 5 gpm
Micron Rating(3) 5 (Finer than RS1)
Model
RS3 Replacement Cartridge
Buy The RS3
Filter Type String Wound
Reduces Rust
  Sediments
Benefits String wound cartridges are good at filtering small rust and sediment particles.
Average Cartridge Life(1) 3 mos or 15,000 gal
Flow Rate(2) 5 gpm
Micron Rating(3) 20
Model
RS7 Replacement Cartridge
Buy The RS7
Filter Type String Wound
Reduces Dirts, Rust Particles
  Sediments
Benefits String wound cartridges are good at filtering small rust and sediment particles
Average Cartridge Life(1) 3 mos or 3,000 gal
Flow Rate(2) 5 gpm
Micron Rating(3) 40
Model
RS12 Replacement Cartridge
Buy The RS12
Filter Type Durable String Wound
Reduces Dirts, Silt, Rust Particles,
  Sand and Sediments
Benefits String wound cartridges are good at filtering small rust and sediment particles
Average Cartridge Life(1) 3 mos or 5,000 gal
Flow Rate(2) 5 gpm
Micron Rating(3) 20
Model
RS14 Replacement Cartridge
Buy The RS14
Filter Type Polyspun Filter
Reduces Dirts, Silt, Rust Particles,
  Sand and Sediments
Benefits Resistant to chemicals and corrosion.
Average Cartridge Life(1) 3 mos or 10,000 gal
Flow Rate(2) 5 gpm
Micron Rating(3) 10

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