O-Rings

We offer a variety of O-ring replacements in sizes that fit your filter housing. Many of these products are engineered from durable synthetic materials that can sustain high levels of pressure, hot and cold temperatures, and a range of fluid types. O-rings should be replaced every 2 filter changes to protect your water filter system. Hand tighten only to prevent leaks.


Popular Products

Hydrotech O-Ring 13771 Replaces Hydrotech 34201006
Special Order.
Ships in 5 to 6 days.

Retail: $6.99
Our Price: $5.95
Save 15%!



Pentek 151118 Silicone O-ring
Special Order.
Ships in 5 to 6 days.

Retail: $24.04
Our Price: $16.51
Save 31%!



Pentek 158096 Silicone O-ring
Special Order.
Ships in 5 to 6 days.

Retail: $36.07
Our Price: $14.95
Save 59%!



3M Aqua-Pure AP200, AP800 Series O-Ring
FREE SHIPPING
within the continental U.S.
In Stock!
Ships in 1 business day.

Retail: $9.99
Our Price: $2.99
Save 70%!



WS03X10028 GE Smartwater Filter O-ring
Special Order.
Ships in 5 to 6 days.

Retail: $16.99
Our Price: $14.95
Save 12%!



WS03X10045 GE RO Membrane Housing O-Ring
Special Order.
Ships in 5 to 6 days.

Retail: $12.99
Our Price: $9.99
Save 23%!



Frigidaire O-Ring 218720100
In Stock!
Ships in 2 to 3 business days.

Retail: $9.99
Our Price: $8.99
Save 10%!



3M Aqua-Pure 63597-174C 3-1/2" O-Ring
FREE SHIPPING
within the continental U.S.
Special Order.
Ships in 5 to 6 days.

Retail: $8.99
Our Price: $5.99
Save 33%!



Frigidaire O-ring 218904301
In Stock!
Ships in 2 to 3 business days.

Retail: $12.99
Our Price: $9.95
Save 23%!



Hydrotech Inlet Diaphragm Cover O-Ring 34201024
Special Order.
Ships in 5 to 6 days.

Retail: $4.99
Our Price: $4.50
Save 10%!



Everpure EV3037-00 Cartridge O-Ring, Large
In Stock!
Ships in 5 to 6 business days.

Retail: $19.99
Our Price: $14.95
Save 25%!



Culligan OR-233 Replacement O-Ring for 3" Housings
Special Order.
Ships in 5 to 6 days.

Retail: $8.99
Our Price: $4.49
Save 50%!



Everpure O-Ring (For Valve Stem) EV301000
In Stock!
Ships in 5 to 6 business days.

Retail: $5.99
Our Price: $4.99
Save 17%!



Pentek SH143330 O-Ring for 3/8" Slimline Housings
Special Order.
Ships in 5 to 6 days.

Retail: $7.99
Our Price: $4.95
Save 38%!



Pentek O-Ring Gasket for ST-BC Stainless Series
Special Order.
Ships in 5 to 6 days.

Retail: $139.99
As Low As: $93.94
Save 33%!



Pura 34202021 Sleeve O-ring
Special Order.
Ships in 5 to 6 days.

Retail: $7.99
Our Price: $5.95
Save 26%!



WS03X10046 GE O-Ring Kit (2 large, 4 small)
Special Order.
Ships in 5 to 6 days.

Retail: $14.99
Our Price: $12.99
Save 13%!



Pentek 151122 O-Ring Replacement For Culligan 1019189
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 O-Ring Replacement For Culligan 1019189
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 O-Ring Replacement For Ace Hardware 4001756
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 O-Ring Replacement For Ace Hardware 4001756
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek SH143330 O-Ring Replacement For American Plumber OR-233
Special Order.
Ships in 5 to 6 days.

Retail: $7.99
Our Price: $4.95
Save 38%!



Pentek SH143330 O-Ring Replacement For American Plumber OR-233
Special Order.
Ships in 5 to 6 days.

Retail: $7.99
Our Price: $4.95
Save 38%!



Pentek 143216 O-Ring for Pentek ST Filter Housings
In Stock!
Ships in 1 business day.

Retail: $24.12
As Low As: $16.56
Save 31%!



Pentek 151120 Replacement for Everpure EV3112-40 Filter Housing
In Stock!
Ships in 1 business day.

Retail: $7.20
As Low As: $3.99
Save 45%!



Pentek 151120 Replacement for Everpure EV3112-40 Filter Housing
In Stock!
Ships in 1 business day.

Retail: $7.20
As Low As: $3.99
Save 45%!



Pentek 151121 O-Ring Replacement for American Plumber W38-OR
In Stock!
Ships in 1 business day.

Retail: $12.49
Our Price: $4.99
Save 60%!



Pentek 151121 O-Ring Replacement for American Plumber W38-OR
In Stock!
Ships in 1 business day.

Retail: $12.49
Our Price: $4.99
Save 60%!



GE WS03X10038 Water Filter Housing O-ring
In Stock!
Ships in 2 to 3 business days.

Retail: $14.99
Our Price: $9.95
Save 34%!



Pentek 151122 O-Ring Replacement For Scaleless SL20BB
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 O-Ring Replacement For Everpure EV309709
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 O-Ring Replacement For Everpure EV309709
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



WS03X10001 GE Smartwater O-Ring 3-3/8" X 3-5/8"
In Stock!
Ships in 1 business day.

Retail: $4.99
Our Price: $4.95
Save 1%!



GE Smartwater Filter O-ring WS03X10039, 151122
In Stock!
Ships in 5 to 6 business days.

Retail: $19.99
Our Price: $15.95
Save 20%!



Hydrotech Housing O-ring 34201026
Special Order.
Ships in 5 to 6 days.

Retail: $5.99
Our Price: $4.95
Save 17%!



OmniFilter K4 Replacement O-Rings for Under Sink
In Stock!
Ships in 1 business day.

Retail: $10.99
Our Price: $8.95
Save 19%!



Culligan OR-100A Replacement O-Ring for Large Housings
In Stock!
Ships in 1 business day.

Retail: $9.99
Our Price: $7.95
Save 20%!



Pentek 241 O-Ring for 10, 12 & 20 Filter Housings
Special Order.
Ships in 5 to 6 days.

Retail: $24.07
Our Price: $15.37
Save 36%!



Pentek 151122 O-Ring Replacement For American Plumber 152032
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 O-Ring Replacement For American Plumber 152032
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 Replacement For Culligan 151122-27 O-Ring
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 Replacement For Culligan 151122-27 O-Ring
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek O-Ring For SlimLine Filter Housing 151121
In Stock!
Ships in 1 business day.

Retail: $12.49
Our Price: $4.99
Save 60%!



Pentek 151122 Replacement For Pentek BB BUNA-N
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



American Plumber WBC-OR, 151254 Square-Cut O-Ring
Special Order.
Ships in 5 to 6 days.

Retail: $18.08
As Low As: $9.72
Save 46%!



Pentek 151122 O-Ring Replacement For American Plumber W10-OR
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151122 O-Ring Replacement For American Plumber W10-OR
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!



Pentek 151120 Filter O-Ring Replaces W34-OR
In Stock!
Ships in 1 business day.

Retail: $7.20
As Low As: $3.99
Save 45%!



Pentek 151122 O-Ring for Big Blue and Heavy Duty Housings
In Stock!
Ships in 1 business day.

Retail: $5.99
As Low As: $3.95
Save 34%!