The TOTO Freestanding Bathtub Filler Rough-In Base is designed for use with a selection of TOTO freestanding tub fillers. The base secures the tub filler to the floor and has 1/2 inch FNPT connections to provide an inlet for water to travel. The base is corrosion resistant with a forged brass body.
Features
- For use with select TOTO freestanding tub fillers.
- Corrosion resistant|1/2 inch FNPT connection.
- Solid forged brass body.
Manufacturer Resources
Product Specs
- Collection:
- Tub Filler
- Connection Size and Type:
- 1/2 NPT
- Product Group:
- Washroom/Bath
- Product Subgroup:
- Tub Filler
- Product Type:
- Tub Filler
- Product Length:
- 5.9375
- Product Height:
- 3.125
- Product Weight:
- 10.15
- Product Width:
- 5.9375
- Department:
- Plumbing
TOTO TBN01105U – Frequently Asked Questions
1) What is the TOTO TBN01105U rough-in base actually for?
It's the under-floor rough-in for a TOTO freestanding tub filler. The base anchors the filler to the floor and carries the water up into it through 1/2 inch FNPT inlet connections. The body is solid forged brass, so it's corrosion resistant where it sits in the floor. The visible filler column and trim are a separate purchase; this part alone won't deliver water to a tub.
2) What size supply pipe do I connect to the TOTO freestanding tub filler rough-in base?
The inlets are 1/2 inch FNPT (female threaded), so you land 1/2 inch male-threaded supply stubs into the base. Copper, PEX, or CPVC all work as long as you transition to 1/2 inch MIP at the base. Hot and cold both terminate at the base, which then feeds the filler above the floor.
3) Will the TOTO TBN01105U work with any freestanding tub filler?
No. It's matched to select TOTO freestanding tub fillers, not a universal floor mount. Filler column diameter, mounting bolt pattern, and the riser connection all have to match. If you're installing another brand's freestanding filler, use the rough-in that manufacturer supplies for that model.
4) Do I need to install the tub filler rough-in before the bathroom floor is finished?
Yes. At 3.125 inches tall with 1/2 inch FNPT inlets underneath, the base has to be set and the supplies connected while the subfloor is open. Once tile or stone is down, you'd be cutting the finished floor to reach it. Set the base, pressure test the 1/2 inch connections, then finish the floor around it and mount the filler last.
5) Is the TBN01105U rough-in base brass all the way through, or plated?
The body is solid forged brass, chosen for corrosion resistance since it lives below the finished floor where it can sit in moisture. Finish isn't a concern on this piece, it's concealed once the trim and filler go on. The single configuration TOTO sells carries the part number TBN01105U.
How fast can I get the TOTO TBN01105U 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 TBN01105U come with a warranty?
Absolutely. The TOTO TBN01105U 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 TBN01105U?
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product
selection,
installation tips, and troubleshooting. Contact Us
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