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Pentek filter housing O-rings should be replaced every two filter changes, or when a water leak is noticed. Hand tighten only to prevent leaks.

 

Pentek O-rings full product list:


Pentek 151122 O-Ring for Big Blue/HD Housings
(151122)

Pentek 151122 O-ring is used for Big Blue / Heavy Duty Housings by Culligan, Ametek, Pentek, US Filter, Plymouth, Kleen Plus, and American Plumber. O-ring is 5 3/4" in diameter and can be used in place of the OR-100 by Culligan.


In stock! Ships in 1 business day.
Pentek 151122 O-Ring for Big Blue/HD Housings
Our Price: $4.95
Retail: $5.99
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Pentek 151120 Filter O-Ring Replaces W34-OR
(151120)

The Pentek 151120 / American Plumber W34-OR O-Ring is a replacement o-ring for all Pentek and American Plumber 3/4 inch I/O Filter Housings except the WH34 Housing.


In stock! Ships in 1 business day.
Pentek 151120 Filter O-Ring Replaces W34-OR
As Low As: $3.99
Retail: $5.99
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Pentek 151122 Replacement For Pentek BB BUNA-N
(BB BUNA-N)

The Pentek BB BUNA-N - Big Blue Filter Housing O-Ring is a replacement O-ring used in all Big Blue water filter housings from Pentek with 1" and 1 1/2" inner/outer diameters, except the Big Clear Housing. This filter housing o-ring is constructed wi


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Pentek 151122 Replacement For Pentek BB BUNA-N
Our Price: $4.75
Retail: $19.99
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Pentek O-Ring For SlimLine Filter Housing 151121
(151121)

The Pentek 151121 is the correct replacement for the following housings: Pentek, Kleen Plus, American Plumber, Ametek, Plymouth, US Filter and Bruner Slim Line Filter Housings.


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Pentek O-Ring For SlimLine Filter Housing 151121
Our Price: $4.75
Retail: $9.99
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Pentek 151122 O-Ring Replacement For American Plumber W10-OR
(W10-OR)

The American Plumber W10-OR O-ring is the replacement o-ring for American Plumber WWHC Housing and other housings with 1" and 1 1/2" Inner / Outer Diameters.


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Pentek 151122 O-Ring Replacement For American Plumber W10-OR
Our Price: $4.95
Retail: $19.99
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Pentek 241 O-Ring for 10, 12 & 20 Filter Housings
(151117)

The Pentek 241 O-Ring for 10, 12 & 20 Filter Housings is also known as part number 151117. This Pentek O-Ring seals the housing sump to the housing cap to prevent leakage.


Special Order. Ships in 27 days.
Pentek 241 O-Ring for 10, 12 & 20 Filter Housings
Our Price: $11.99
Retail: $14.99
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Pentek 151122 O-Ring Replacement For Culligan 1019189
(Culligan 1019189 R)

The Pentek 151122 is the compatible replacement for the Culligan 1019189.


In stock! Ships in 1 business day.
Pentek 151122 O-Ring Replacement For Culligan 1019189
Our Price: $4.95
Retail: $19.99
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Pentek 151122 O-Ring Replacement For Scaleless SL20BB
(BB O-Ring R)

The Scaleless Comp. Filter Housing O-Ring- SL20BB is a replacement O-ring for the Hydrotech Scaleless SL20-BB Water Softening System. This Scaleless O-ring features a 0.17" bead size and is 5 3/4" in diameter.


In stock! Ships in 1 business day.
Pentek 151122 O-Ring Replacement For Scaleless SL20BB
Our Price: $4.75
Retail: $9.99
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Pentek O-Ring for 3/8" Slimline Housings SH143330
(SH143330)

The Pentek OR-233 is the correct replacement for the following systems: Pentek Under-Sink RO-3000 Reverse Osmosis Systems and Pentek Under-Sink RO-3500 Reverse Osmosis Systems.


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Pentek O-Ring for 3/8" Slimline Housings SH143330
Our Price: $4.99
Retail: $5.99
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Pentek 143216 O-Ring for Pentek ST Filter Housings
(143216)

This Pentek O-Ring (Pentek 143216) is a replacement o-ring for Pentek ST Model stainless steel water filter housings including the following models:


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Pentek 143216 O-Ring for Pentek ST Filter Housings
As Low As: $10.95
Retail: $19.99
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Pentek 158096 Silicone O-ring
(158096)

Pentek 158096 Silicone O-ring is designed for use in Pentek High Tempature Housing models 158319 & 158318 to prevent leaking.


Special Order. Ships in 3 days.
Pentek 158096 Silicone O-ring
Our Price: $22.99
Retail: $29.99
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Pentek 151122 O-Ring Replacement For Ace Hardware 4001756
(Ace 4001756 R)

The Ace 4001756 R is the correct compatible replacement o-ring that replaces the following: Pentek 151122 The Ace Hardware 4001756 Replacement Comp. O-Ring is for use with large/Heavy Duty housings. This filter housing oring is 5 3/4 inch


In stock! Ships in 1 business day.
Pentek 151122 O-Ring Replacement For Ace Hardware 4001756
Our Price: $4.75
Retail: $19.99
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Pentek 151118 Silicone O-ring
(151118)

Pentek 151118 Silicone O-ring is designed for use in Pentek High Tempature Housing models 150015 & 150111 to prevent leaking.


Special Order. Ships in 18 days.
Pentek 151118 Silicone O-ring
Our Price: $13.99
Retail: $15.99
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Pentek SH257388 Replacement For Pentek 257388
(257388)

This 1/4" gasket is used with various Pentek bag filters and is made of Santroprene, a thermoplastic elastomer made by combining EPDM rubber with polypropylene.


Special Order. Ships in 19 days.
Pentek SH257388 Replacement For Pentek 257388
Our Price: $7.99
Retail: $8.99
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Pentek O-ring Kit for Quartz Sleeve for UVS-110
(163538)

The Pentek 163538 is the correct replacement for the following SlimLine water filtration systems: Pentek UVS-110-1 Pentek UVS-110-2 The Pentek O-ring Kit for Quartz Sleeve for UVS-110 prevents water from leaking around the quartz sleeve. This


Special Order. Ships in 16 days.
Pentek O-ring Kit for Quartz Sleeve for UVS-110
Our Price: $21.99
Retail: $24.99
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Pentek O-Ring Gasket for ST-BC Stainless Series
(143218)

The Pentek 143218 O-ring for filter housings is the correct replacement for your Pentek ST-BC series stainless steel housing. This o-ring will form a seal between the housing sump and housing cap to prevent leaks. This o ring gasket will complete yo


Special Order. Ships in 12 days.
Pentek O-Ring Gasket for ST-BC Stainless Series
As Low As: $66.94
Retail: $83.99
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Pentek BBLB O-Ring for MPST Filter Housings
(BBLB)

The Pentek BBLB O-Ring fits Pentek multi-purpose stainless steel filter housings MPST-1.5 and MPST-1 (243111).


This item has been discontinued. Please review the product description for more information.
Pentek BBLB O-Ring for MPST Filter Housings
Our Price: $15.42
Retail: $16.99
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Pentek O-ring for Quartz Sleeve UV-110 & UV-120
(163516)

The Pentek 163516 is the correct replacement for the following ultraviolet water filtration systems: Pentek UV-110-1 Pentek UV-110-2 Pentek UV-120-1 Pentek UV-120-2 The Pentek O-ring for Quartz Sleeve UV-110 & UV-120 prevents water from lea


This item has been discontinued. Please review the product description for more information.
Pentek O-ring for Quartz Sleeve UV-110 & UV-120
Our Price: $23.98
Retail: $29.99
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