can this ring be streching?

Do you mean can it be stretched? Essentially, no. A little bit, but O-rings are not elastic like rubber bands.

Anyone tried these on us water systems magna (grey housing) filters?

It's plumbing. There's no way to know whether a gasket or part will fit without buying it and trying it.

is this the o ring for an Aqua Flow 26258?

The filter housing for this ring is for a 20" Big Blue filter which was installed by Culligan......my guess is the diameter is a standard size for any 20" housing.....but best to confirm with Aqua Flow

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)

Captain O-Ring - Replacement 151122 O-Rings Compatible with Pentair Pentek Big Blue Water Filters OEM Size ORing Buna-N (3 Pack)

Product ID: 23942697

Details

Brand
Captain O-Ring
Color
black
Item Diameter
5.83 Inches
Material
Buna-N Rubber
Nominal Inside Diameter
5.5 Inches

💧NSF 61 Certified Safe Seal

🛠️Precision OEM Size Fit

🇺🇸Proudly USA Assembled

€ 29.53

Duties & taxes included

In stock

Sold byAmazon NetherlandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Netherlands.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

💧 Seal in purity, seal out leaks — upgrade your water filter game!

TRIPLE PACK VALUE - Three durable replacement o-rings included—ideal for biannual filter maintenance without breaking the bank.
HASSLE FREE INSTALLATION - Smooth, flexible design prevents binding and distortion, making filter changes quick and effortless.
TRUSTED QUALITY USA MADE - Assembled in the USA by Captain O-Ring LLC, backed by thousands of 5-star reviews for reliability.
PERFECT OEM FIT EVERY TIME - Engineered to match Pentair Pentek Big Blue housings with exact 151122 dimensions for leak-proof performance.
SAFE CLEAN WATER GUARANTEE - Made from NSF 61 certified Buna-N rubber ensuring your drinking water stays pure and uncontaminated.

Captain O-Ring’s 3-pack replacement 151122 o-rings are precision-engineered Buna-N seals compatible with Pentair Pentek Big Blue water filter housings. NSF 61 certified for safe drinking water, these durable gaskets ensure a perfect leak-proof fit every time. Proudly assembled in the USA, they offer an easy, cost-effective solution for maintaining your water filtration system’s integrity and performance.

Specifications

ASIN	B019Y85PR6
Best Sellers Rank	#5,477 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1 in Undersink Water Filtration Replacement Parts
Brand	Captain O-Ring
Brand Name	Captain O-Ring
Color	black
Customer Reviews	4.5 out of 5 stars 3,262 Reviews
EU Spare Part Availability Duration	1 years
Item Diameter	5.83 inches
Item Weight	18.14 g
Manufacturer	Captain O-Ring LLC
Material	Nitrile Rubber
Material Type	Nitrile Rubber
Model	151122x3
Nominal Inside Diameter	5.5 inches
Nominal Outside Diameter	5.83 inches
Number of Items	3
Number of Pieces	3
Part Number	151122
Set Name	3 Pack
Temperature Range	4E+1 °F
UPC	722589526046
Unit Count	3 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.