---
product_id: 417871628
title: "OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter"
brand: "os&b"
price: "61777 kr"
currency: ISK
in_stock: true
category: "Os&B"
url: https://www.desertcart.is/products/417871628-os-and-b-itd35-freestanding-bathtub-rough-in-kit-brass
store_origin: IS
region: Iceland
---

# Brass threaded & flanged tailpieces 8"/10" joist compatibility Lifetime warranty protection OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter

**Brand:** os&b
**Price:** 61777 kr
**Availability:** ✅ In Stock

## Summary

> 🛁 Upgrade your bathroom game with the ITD35 – where pro installs meet effortless style!

## Quick Answers

- **What is this?** OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter by os&b
- **How much does it cost?** 61777 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/417871628-os-and-b-itd35-freestanding-bathtub-rough-in-kit-brass)

## Best For

- os&b enthusiasts

## Why This Product

- Trusted os&b brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Waterproofing Ready:** Compatible with waterproofing membranes for a professional-grade, moisture-resistant finish.
- • **Universal Compatibility:** Works flawlessly with all freestanding and standard bathtubs, saving time and money on installs.
- • **Debris-Free Installation:** Protective film over drain opening keeps your rough-in stage clean and hassle-free.
- • **Premium Brass & ABS Components:** Durable brass tailpieces paired with ABS adapters ensure long-lasting, leak-proof performance.
- • **Effortless Freestanding Tub Setup:** Pre-tile install kit designed for seamless integration in 8" or 10" joist spaces.

## Overview

The OS&B ITD35 Freestanding Bathtub Rough-in Kit is a professional-grade plumbing solution designed for quick, clean installation of freestanding tubs. Featuring brass tailpieces and ABS adapters, it fits standard 8" or 10" joist spaces and includes a protective film to prevent debris during installation. Compatible with waterproofing membranes and backed by a lifetime warranty, this kit streamlines new construction and remodeling projects with durability and ease.

## Description

Install a freestanding bath tub in minutes with the island tub drain. No muss, no fuss, no kidding. Works with all freestanding bathtubs and standard bathtubs. Makes installation easier saves time and money during install. Protected by a lifetime warranty

## Features

- ITD35 is a Freestanding tub rough-in kit (install before tile installation)
- Designed to be installed in an 8"/10" joist space with 1-1/2"/2" p-trap respectively
- Includes: island drain assembly with 1-1/2 inch DWV ABS tailpiece, cutting template & protective Film over opening keeps out debris during rough-in stage and
- Supplied with brass tailpieces (threaded and flanged) and ABS waste/overflow adaptor kit
- Can be installed with waterproofing membrane

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B016M16DTC |
| Batteries Required? | No |
| Batteries included? | No |
| Best Sellers Rank | 934,901 in DIY & Tools ( See Top 100 in DIY & Tools ) 768 in Soaking Baths |
| Colour | Red & Black |
| Customer Reviews | 4.6 4.6 out of 5 stars (778) |
| Date First Available | 12 Oct. 2015 |
| Finish | ABS |
| Guaranteed software updates until | unknown |
| Included Components | Rough-in Kit |
| Installation method | Freestanding |
| Item Package Quantity | 1 |
| Item Weight | 948 g |
| Item model number | ITD35 |
| Manufacturer | Thompson Traders, Inc. |
| Material | Acrylonitrile Butadiene Styrene (ABS) |
| Part Number | ITD35 |
| Product Dimensions | 23.83 x 23.83 x 10.49 cm; 948 g |
| Shape | Round |
| Size | SINGLE |
| Style | ITD35 - ABS |
| Usage | New construction, Remodeling, Residential, Commercial |

## Product Details

- **Brand:** OS&B
- **Global Trade Identification Number:** 00775439064526
- **Manufacturer:** Oakville Stamping and Bending Ltd.
- **Material:** Acrylonitrile Butadiene Styrene (ABS)
- **Maximum Pressure:** 30 psi
- **Outside Diameter:** 2 inches
- **UPC:** 775439064526
- **Unit Count:** 1 Count

## Images

![OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter - Image 1](https://m.media-amazon.com/images/I/61XZuFB+e3L.jpg)
![OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter - Image 2](https://m.media-amazon.com/images/I/41qIqtBiYQL.jpg)
![OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter - Image 3](https://m.media-amazon.com/images/I/51gWBC38VFL.jpg)
![OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter - Image 4](https://m.media-amazon.com/images/I/51toYM4Zu7L.jpg)
![OS&B ITD35 Freestanding Bathtub Rough-in Kit Brass Tail Pipe and ABS Plastic Adapter - Image 5](https://m.media-amazon.com/images/I/41-6d-lTiPL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

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

## 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

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**Shop now:** [https://www.desertcart.is/products/417871628-os-and-b-itd35-freestanding-bathtub-rough-in-kit-brass](https://www.desertcart.is/products/417871628-os-and-b-itd35-freestanding-bathtub-rough-in-kit-brass)

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-10-16*