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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 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: $4.75
Retail: $19.99
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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


In stock! Ships in 1 business day.
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.


In stock! Ships in 1 business day.
Pentek O-Ring For SlimLine Filter Housing 151121
Our Price: $4.75
Retail: $9.99
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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 17 days.
Pentek 241 O-Ring for 10, 12 & 20 Filter Housings
Our Price: $11.99
Retail: $14.99
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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:


In stock! Ships in 1 business day.
Pentek 143216 O-Ring for Pentek ST Filter Housings
As Low As: $10.95
Retail: $19.99
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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.


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Pentek 151122 O-Ring Replacement For Culligan 1019189
Our Price: $4.75
Retail: $19.99
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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 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 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 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 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 14 days.
Pentek 158096 Silicone O-ring
Our Price: $22.99
Retail: $29.99
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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).


In Stock! Ships in 29 to 30 business days.
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


In Stock! Ships in 16 to 17 business days.
Pentek O-ring for Quartz Sleeve UV-110 & UV-120
Our Price: $23.98
Retail: $29.99
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Filters Fast - Pentek O-rings

" Thank you for your expert service when helping me get the proper filters for my old pool and filter system. The new ones are perfect and work very well. All the best! " - Jim, Alamo, CA
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