OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter, Single

OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter, Single

Q: What diameter is top mount where screws go in?

That’s a good question. I can’t remember the exact measurement but it’s somewhere around 10 inches.

Q: Will this work with 2” abs p-trap? States 1-1/2”/2” respectively in description, but want to be certain

I used a 2” abs p-trap. No issues there. The hard part came when I selected a tub drain, which came with a perfect reducer for the threaded brass tail pipe ( as shown in picture). The reducer was plastic, and I wanted brass. The tub drain manufacturer would not replace nor sell me a brass replacement, so I ordered one from a third party. The ITD35 was easy to install, and suits my needs perfectly. Just be careful choosing a tub drain.

Q: If I am laying cement board in between the plywood floor and tiles, do I screw the rough in to the plywood or the cement board?

I believe the directions with the product say to screw the rough in to the plywood. Mine is on the plywood, found that flat roofing nails caused less issues with the cement board layer than screws.

Q: If the p-trap gets backed up, will the seal prevent leakage? I am nervous of the slip in connection and a few years worth of time.

Good afternoon, that is a valid question, although should be directed toward the manufacture. Most issues in a tub are due to hair clogs and generally are limited to the strainer in the tub, not the ptrap. You should recognize the symptoms of a pending clog well in advance of a backup. . You should never get to this point, having two daughters with princess hair forces me to be proactive and remove the hair buildup. Regardless, and in my opinion, the seal in the slip connection is tight, although would not prevent leakage if pressure where present

4.6/5

Product ID: 417871628

Secure Transaction

🔩Durable brass tailpieces & ABS adapters

🧱Pre-tile install with protective debris film

🛠️Precision fit for 8"/10" joist spacing

Frequently Bought Together

OS&B ITD35 ABS Island Tub Drain Rough-in for Freestanding Bathtub, Simplifies Installation, Water, Air, and Smoke Testable Tub Drain, Designed for 8"/10" Joist Space, Plumbing Supplies

DURATECH Inside Pipe Cutter with 2 Replaced Blades, for PVC and Plastic Pipe

Description

🚿 Elevate your freestanding tub install—because your bathroom deserves flawless foundations!

PREMIUM MATERIAL MIX - Brass tailpieces combined with ABS plastic adapters deliver unmatched durability and corrosion resistance.
COMPLETE ROUGH IN KIT - Includes island drain assembly, cutting template, and all necessary components for a streamlined setup.
PRE TILE INSTALLATION READY - Install before tiling with a protective film that keeps debris out, saving time and avoiding costly rework.
SEAMLESS JOIST COMPATIBILITY - Engineered for perfect fit in standard 8" or 10" joist spaces, ensuring hassle-free installation.
WATERPROOFING MEMBRANE FRIENDLY - Designed to integrate effortlessly with waterproofing membranes for a leak-proof bathroom sanctuary.

The OS&B ITD35 Freestanding Bathtub Rough-in Kit is a precision-engineered installation solution designed for 8" or 10" joist spaces. Featuring brass tailpieces and ABS adapters, it supports pre-tile installation with a protective film to prevent debris contamination. Compatible with waterproofing membranes, this kit includes all essential components for a professional, durable, and streamlined freestanding tub setup.

Specifications

Manufacturer	Thompson Traders, Inc.
Part Number	ITD35
Product Dimensions	23.83 x 23.83 x 10.49 cm; 948 g
Item model number	ITD35
Size	SINGLE
Colour	Brass
Style	ITD35 - ABS
Finish	ABS
Material	ABS
Installation method	Freestanding
Item Package Quantity	1
Included Components	Rough-in Kit
Batteries included?	No
Batteries Required?	No
Item Weight	948 g

Have a Question? See What Others Asked

What diameter is top mount where screws go in?

Will this work with 2” abs p-trap? States 1-1/2”/2” respectively in description, but want to be certain

If I am laying cement board in between the plywood floor and tiles, do I screw the rough in to the plywood or the cement board?

If the p-trap gets backed up, will the seal prevent leakage? I am nervous of the slip in connection and a few years worth of time.

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving over 300 million shoppers across more than 200 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

R7311

Duties & taxes incl.

South Africastore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

Secure Transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews

About Us

Customer Services

Customer Support

Regional Access

Legal & Policies

Social

Get the App

OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter, Single

Description

Specifications

Have a Question? See What Others Asked

Common Questions