By: Captain O-Ring
Don't worry about replacing your undersink water filtration system with Captain O-Ring's 151122 O-Rings! Our O-Rings are compatible with Pentek Big Blue Water Filters and are made of high-quality Buna-N material. Our O-Rings are designed for easy installation, superior build quality, and maximum convenience. Get your 3-pack today and experience the best in water filtration replacement parts!
Traveler99: Purchased for my Culligan HD-950A (big blue 10") whole house filter. Other brand's gaskets I've bought never fit right, always to big. These sit in the gasket seat perfectly with no problems at all. So far tight leak free fit. Will continue to order these!
United States on Sep 15, 2023
Max H. Herr: It was time to change the filters in my Big Blue whole house system. But when I removed the prefilter housing, the o-ring expanded and would not go back in. Without the o-rings, you can't turn the water supply back on. Found this item here with same-day delivery and about four hours later, they arrived. These o-rings fit perfectly and I now have spares on hand for the next go around in six month . . . just in case.
United States on Aug 26, 2023
NAMITA: HELPED KEEP CARTRIGES FROM GETTING TOO TIGHT.
United States on Jul 29, 2023
Craig Houghton: Measured size to compare to my Big Blue filter housing. It matches the original o-ring exactly in diameter and thickness. I also recommend using a good silicone lubricant to make removal easier, protect the gasket and preserve it.
United States on Jul 21, 2023
S.Purser: Fast delivery fits perfectly! Quality O-ring. 0ne third the cost of local who were out of stock;)
Canada on Mar 28, 2022
Greg Judge: Think lot of people over tighten these and cause leaks.
Use plumber tape and o-ring and just tighten to snug, if it leaks then tighten a little more.
Great O-rings
Canada on Aug 28, 2021
J B: It's a pleasure to find an O ring that fits perfect. If you own the big blue water filter, keep a bag of these handy. Big thumbs up.
Canada on Apr 24, 2020
Terry: I change my filter every three months and put a new one in. It is better than a basement full of water. I have the Big Blue whole home filter.
Canada on Mar 18, 2020
Shiva Singh: Purchased this item along with food grade silicone grease. Applied grease to o-ring and placed o-ring into Pentair 20" water filter housing. Hand tightened the housing, then did an additional 1/8 turn with plastic housing wrench. No leaks, product worked well.
Canada on Aug 30, 2019
| 3-Pack of Buna-N Compatible 151122 O-Rings for Pentek Big Blue Water Filters - OEM Size Replacement by Captain O-Ring | iSpring ICEK Ultra Safe Fridge Water Line Connection and Ice Maker Installation Kit for Reverse Osmosis RO Systems & Water Filters (1/4" Tube, Approx. 20 Feet) | APEC Water Systems ICEMAKER-KIT-RO-1-4: White Installation Kit for Standard 1/4" Output Reverse Osmosis Systems, Refrigerator and Water Filters | |
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| B2B Rating |
94
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97
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96
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| Sale off | $3 OFF | $1 OFF | |
| Total Reviews | 344 reviews | 470 reviews | 327 reviews |
| Best Sellers Rank | #1 in Undersink Water Filtration Replacement Parts | #8,734 in Tools & Home Improvement #4 in Undersink Water Filtration Replacement Parts | #22,078 in Tools & Home Improvement #6 in Undersink Water Filtration Replacement Parts#297 in In-Refrigerator Water Filters |
| Customer Reviews | 4.5/5 stars of 2,180 ratings | 4.6/5 stars of 4,574 ratings | 4.7/5 stars of 1,765 ratings |
| Is Discontinued By Manufacturer | No | ||
| Date First Available | December 29, 2015 | ||
| Package Dimensions | 6.38 x 5.71 x 0.63 inches; 0.64 Ounces | ||
| ASIN | B019Y85PR6 | ||
| Manufacturer | Captain O-Ring LLC | ||
| Item model number | 151122x3 | ||
| Undersink Water Filtration Replacement Parts | Undersink Water Filtration Replacement Parts |
United States on Sep 17, 2023