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Whole House Water Filter - Model OB1
Model OB1 is OMNI's basic whole house water filter for professional installers. The filter comes with the filter housing and a pressure release valve. The filter cartridge and installation hardware are sold separately. 

The OB1 now comes with mounting bracket and wrench.

With its 3/4" NPT, the OB1 whole house water filter can be installed on standard plumbing pipe.  

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.

If you have an older Omni filter model that has been discontinued and need an O-Rings or cartridges, please call our customer service number: (888) 855-3545 for assistance.
Replacement filter cartridges: TO1, RS1, RS2 or RS3  

Omni OB1 Water Filter

Our Price $18.90


Qty: Add TO1 Replacement Cartridges + $6.93

Qty: Add RS1 Replacement Cartridges + $2.78

Qty: Add RS2 Replacement Cartridges + $3.48

Qty: Add RS3 Replacement Cartridges + $2.99

Qty: Add RS5 Replacement Cartridges + $12.61

Qty: Add RS7 Replacement Cartridges + $11.55

Qty: Add RS12 Replacement Cartridges + $2.12

Qty: Add RS14 Replacement Cartridges + $1.80


Qty: Add K4 Oring + $3.95

Qty: Add OK40 Oring + $3.95


Qty: Add OW30 Wrench + $6.99


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Installation Information

Also called OB1 and OB 1 whole house filter

Length: 11 1/2 inches 
Width: 5 1/4 inches

Installation information

Tank Wrench and O-Rings


GAC1 Cartridge Information and Data - Get More Data or Purchase Other Cartridges Separately Here 

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Rexford, MT  59930


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