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O-RING, VALVE CAP TOP (10/BAG)
Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- valve cap top
- Parts and Accessories Type:
- Cap
- Department:
- Plumbing
TOTO THP3189 – Frequently Asked Questions
1) What exactly comes in the TOTO THP3189 valve cap assembly part?
THP3189 is the O-ring for the top of the valve cap, supplied 10 to a bag. So you are buying a bag of ten replacement O-rings, not a machined cap body. If the cap itself is cracked or stripped, this is not the part that fixes it.
2) I need a TOTO valve cap O-ring, how do I confirm I'm ordering the right one?
Order by the TOTO part number THP3189. TOTO seal kits are model specific and O-rings of similar appearance are not interchangeable, so match the number called out for your valve rather than judging by the look of the ring.
3) Is TOTO THP3189 sold individually or only in a bag of 10?
It ships as a 10-pack bag. For a property manager or MRO stockroom that suits keeping spares on the shelf across several fixtures, since you are replacing a small elastomer seal rather than a whole valve.
4) Will replacing this O-ring stop a leak coming from under the valve cap?
A weep or drip at the joint where the cap seats is exactly what the valve cap top O-ring seals, so a hardened or flattened ring is the usual cause and THP3189 is the replacement. Water passing through the valve internally, or dripping from the outlet, points to the cartridge or seat instead, not this seal.
5) Is THP3189 a plumbing repair part or a finish trim piece?
It is a functional plumbing repair seal, not decorative trim. The O-ring sits under the cap and is not visible once assembled, so there is no finish choice to make with it.
How fast can I get the TOTO THP3189 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the
continental
U.S.
Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit,
reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the TOTO THP3189 come with a warranty?
Absolutely. The TOTO THP3189 is backed by a manufacturer’s warranty.
For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the TOTO THP3189?
You can call, text, or email our expert support team for fast answers. We’re here to help with
product
selection,
installation tips, and troubleshooting. Contact Us
Why buy the TOTO THP3189 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support,
and
rewards on
every order.
Our team is always ready to help you choose the right product for your project.