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Manufacturer Resources
Product Specs
- Product Group:
- Washroom/Bath Accessories
- Product Subgroup:
- Parts and Accessories
- Product Type:
- thermo valve temp
- Parts and Accessories Type:
- Thermostatic Valve
- Department:
- Plumbing
- Application:
- Shower and Tub
TOTO THP4548 – Frequently Asked Questions
1) What does the TOTO THP4548 volume control knob fit?
The THP4548 is TOTO's volume control knob for the TS630C2 and TS630D2 shower and tub valve trim. It's the handle you turn to control flow volume, ordered by TOTO part number THP4548.
2) Is the TOTO THP4548 the temperature handle or the volume handle?
It's the volume control knob, not the temperature handle. On a TS630C2/D2 setup the volume knob governs flow on/off and rate; temperature is set on the thermostatic side of the trim, which uses a separate part. If a resident is complaining about water temperature rather than flow, THP4548 is not the piece to replace.
3) Does the THP4548 knob include the valve body or cartridge?
No. This is the volume control knob only, a trim replacement part for TS630C2/D2. The rough-in valve body, the thermostatic cartridge, and the temperature handle are all separate items. Buy it when the existing knob is cracked, stripped, or the finish has failed, not when the valve itself is leaking or drifting.
4) Can I use this TOTO knob on a pressure balance shower valve?
No. THP4548 is a thermostatic valve trim part, matched to TOTO's TS630C2/D2 thermostatic trim. A pressure balance valve uses a different trim family and the knob will not interchange. Identify your existing TOTO trim series before ordering a replacement handle.
5) I manage apartments with TOTO shower trim. Can I stock one knob for all my units?
Only for units running TS630C2 or TS630D2 trim. THP4548 is keyed to that trim series, so it standardizes across those openings but won't cover other TOTO shower families. Walk a few units and confirm the trim series stamped or documented on the valve before you buy a case quantity.
6) Can the THP4548 be used on a tub filler as well as a shower?
The part is listed for shower and tub use, so it applies to TS630C2/D2 trim serving either a shower or a tub/shower combination. What matters is the trim series, not whether the outlet is a head or a spout.
How fast can I get the TOTO THP4548 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 THP4548 come with a warranty?
Absolutely. The TOTO THP4548 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 THP4548?
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 THP4548 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.