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Captain O-Ring - Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack)

Captain O-Ring - Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack)

Q: How often do I need to change my filter housing's o-ring?

Captain O-Ring's high quality replacement water filter housing o-rings are designed for reliable extended use. Still, it is typically recommended to replace your o-ring on every third filter change to ensure it is in top shape to prevent leaks.

Q: Can I use grease or lubricant on these o-rings?

You can if you'd like to. Generally a brand new buna-n o-ring can be installed just with wetting it with water. However, these o-rings are compatible with all silicone and petroleum based lubricants, as well as natural oils like vegetable oil.

Q: What if I don't know what o-ring part number my filter housing needs?

Use our handy printable water filter housing o-ring size chart. Print out the chart and lay your old o-ring on the page to see which o-ring it matches with. You can find the size chart listed as "User Guide [PDF]" under "Product guides and documents"

Q: Are these o-rings safe for use in my drinking water?

Yes! These Captain O-Ring replacement o-rings are molded from NSF 61 certified buna-n rubber for safe and clean drinking water.

Q: Where is this o-ring kit assembled?

Proudly assembled in the USA! We hand assemble these kits in Gloucester City, New Jersey.

Product ID: 454817954

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Details

Nominal Inside Diameter
3.5 Inches
Item Diameter
3.75 Inches
Brand
Captain O-Ring
Colour
Black
Nominal Outside Diameter
3.75 Inches

📏3.5" ID x 3.75" OD precision fit

🛠️3-pack for continuous leak protection

🇺🇸Proudly USA assembled, NSF 61 certified

Frequently Bought Together

Captain O-Ring - Replacement 63597174C / 63597174P / AO-WH-STD-OR-2 / WP252235 Orings for 3M Aqua-Pure, AO Smith, Watts Filter Housings (3 Pack)

3M Aqua-Pure AP110 2-Pack Whole House Replacement Water Filter Cartridges, 5 Micron Sediment Reduction, for use with AP11T or AP101T Housing

3M Aqua-Pure AP101T Whole House Transparent Water Filter Housing, Ideal for 1-2 Bath Homes, Standard 1-high Drop-in Cartridge

Description

💧 Seal the deal with Captain O-Ring — your water’s best defense!

NSF 61 CERTIFIED SAFETY - Crafted from FDA-compliant Buna-N rubber to ensure your drinking water stays pure and safe.
ROUTINE LEAK PREVENTION - Recommended replacement every 3rd filter change to maintain optimal water filtration without interruptions.
TRIPLE PACK RELIABILITY - Keep your water filter leak-free with three premium O-rings—never run dry on replacements.
PRECISION FIT GUARANTEED - Designed to perfectly seal 3M Aqua-Pure, Watts, AO Smith, and Project Source housings for flawless performance.
TRUSTED AMERICAN CRAFTSMANSHIP - Manufactured and backed by a 1-year warranty from Captain O-Ring LLC, assembled in the USA for quality assurance.

Captain O-Ring’s 3-pack replacement O-rings (3.5" ID x 3.75" OD) are precision-engineered seals compatible with major water filter housings including 3M Aqua-Pure, Watts, and AO Smith. Made from NSF 61 certified Buna-N rubber and proudly assembled in the USA, these O-rings ensure leak-free, safe drinking water. Replace every third filter change to maintain a flawless seal, backed by a 1-year warranty from Captain O-Ring LLC.

Specifications

Nominal Inside Diameter	3.5 Inches
Item Diameter	3.75 Inches
Brand	Captain O-Ring
Colour	Black
Nominal Outside Diameter	3.75 Inches
UPC	701748961300
Manufacturer	Captain O-Ring LLC
Net Quantity	3.0 Count
Number of Pieces	3
Item part number	63597174C
ASIN	B00T56QCCA

Have a Question? See What Others Asked

How often do I need to change my filter housing's o-ring?

Can I use grease or lubricant on these o-rings?

What if I don't know what o-ring part number my filter housing needs?

Are these o-rings safe for use in my drinking water?

Where is this o-ring kit assembled?

Common Questions

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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.

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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.

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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.

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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.

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