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The Pentek 151120 Buna-N O-ring is a precision-engineered synthetic rubber gasket designed for Standard and 3G water filter housings. With a 4.13-inch diameter and ultra-lightweight build, it offers reliable sealing performance backed by Pentair’s trusted manufacturing and a strong customer satisfaction rating.
| ASIN | B000QEGIK6 |
| Best Sellers Rank | #87,244 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #235 in O-Rings |
| Brand | Pentek |
| Brand Name | Pentek |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 125 Reviews |
| Global Trade Identification Number | 00051678511206 |
| Item Diameter | 4.13 Inches |
| Item Weight | 0.01 Pounds |
| Manufacturer | Pentair Industries |
| Material | Synthetic Rubber |
| Material Type | Synthetic Rubber |
| Model | 151120 |
| Nominal Inside Diameter | 4.13 Inches |
| Number of Pieces | 1 |
| Part Number | 151120 |
| UPC | 074994409941 051678511206 |
| Unit Count | 1.0 Count |
P**L
Matches whole house water filter
Good buy.
P**H
I Found It On Amazon!
Looked everywhere for this o-ring for an existing water filter I have and found it here on Amazon. Priced right, arrived quickly and fit perfect.
C**M
Inexpensive
Works great as a replacement for this part, instead of buying a whole new water filter system
B**K
Unnecessary shipping costs...couldn't they have been mailed together?
I ordered four rings at the same time and each was sent out separately. I believe shipping was charged each time.The rings were shipped in a padded envelope and shipping totaled $21.95. For the four rings which totaled$ 7.72 I felt this was unnecessary and a little much. But they are here and I don't have to look for them anymore.
T**E
I guess I tightened the blue canister a little too ...
I guess I tightened the blue canister a little too much, and so the O-ring in it got all bent out of shape... so sensitive. Anyway, I have the standard 20-inch housing, these fit and work well... I just need to remember not to over-tighten.
R**N
Wrong size
Was the wrong size for my filter cartridge. I have 4 unusable O rings. I don't remember the product description having the dimension of the o ring, rather just an indication that it was for "standard housings". Any suggestions as to what I can do with these o rings?
O**I
Pentek 151120 Buna-N O-ring
It fits and seals the housing. What more could I ask for. Plus, it's less expensive than American Plumber's o-rings.
S**O
Required to keep as spares
Always have these extra O-rings on hand if you own the Pura UV20 series of filters. Since I change my water filters once every 3 months, sometimes the O-rings stretch and become unusable. I keep about 3 or 4 of these O-rings on hand for just-in-case.
T**.
Fits perfect
It fits perfect for our really old water filter.
K**C
Good to have a backup seal
As with bullets it's better to have and not need than the reverse. I had a seal stick once and tear..big pain...had to buy a whole new unit...so now I pay the insurance and buy a spare seal.
A**R
Four Stars
A must to have a spare.
Y**N
great
work as advise!! great quality
J**E
Poor fit
Unfortunately, does not fit the big blue whole water filter cartridge. It was too big.
Trustpilot
5 days ago
4 days ago