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Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- gasket
- Parts and Accessories Type:
- Gasket
- Department:
- Plumbing
TOTO THP3145 – Frequently Asked Questions
1) What part number do I order for the TOTO THP3145 gasket?
Order TOTO MPN THP3145. It is a single-part listing, so there are no size or material options to pick from, just the one gasket.
2) What size is the TOTO THP3145 gasket?
It is a 22 mm outside diameter gasket with a 1.5 mm height, so it seats in a small recessed groove rather than bolting up like a flange gasket. Measure the counterbore on your fitting against the 22 mm OD before ordering, since a seal this thin has no room to compensate for an oversized pocket.
3) Is the THP3145 a service part for a TOTO fixture, or a general-purpose plumbing gasket?
It is a TOTO-branded service gasket for washroom and bath fixtures, sold as a replacement seal rather than a generic O-ring. If you are rebuilding a TOTO valve, faucet or flush assembly, match the part number called out in that fixture's parts breakdown instead of choosing by dimension alone, because TOTO uses several similarly sized seals across its lines.
4) I manage several buildings with TOTO fixtures. Is the THP3145 gasket worth stocking on the truck?
It is a small consumable seal, which is exactly the kind of part that turns a ten minute repair into a return trip when you do not have one. If your properties run the TOTO fixture that calls for THP3145, keeping a few on hand is reasonable. It is the seal only, so any springs, cartridges or retaining nuts in the same rebuild have to be ordered separately.
How fast can I get the TOTO THP3145 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 THP3145 come with a warranty?
Absolutely. The TOTO THP3145 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 THP3145?
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 THP3145 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.