---
product_id: 162237580
title: "G.T. Water Products, Inc. MTP352 Safe-T-Seal Combination Cleanout Plug, 3-1/2-Inch"
brand: "safe-t-seal"
price: "274 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/162237580-g-t-water-products-inc-mtp352-safe-t-seal-combination
store_origin: RO
region: Romania
---

# 50-foot head pressure tested 3.5-inch precision fit Made in the USA quality G.T. Water Products, Inc. MTP352 Safe-T-Seal Combination Cleanout Plug, 3-1/2-Inch

**Brand:** safe-t-seal
**Price:** 274 Lei
**Availability:** ✅ In Stock

## Summary

> 🔒 Seal smart, seal strong — never worry about leaks again!

## Quick Answers

- **What is this?** G.T. Water Products, Inc. MTP352 Safe-T-Seal Combination Cleanout Plug, 3-1/2-Inch by safe-t-seal
- **How much does it cost?** 274 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/162237580-g-t-water-products-inc-mtp352-safe-t-seal-combination)

## Best For

- safe-t-seal enthusiasts

## Why This Product

- Trusted safe-t-seal brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **High-Pressure Tested:** Confidently seals up to 3 stories or 50 feet of head pressure without leaks.
- • **Rust-Free Durability:** All-plastic design ensures no metal corrosion—lasting reliability guaranteed.
- • **Compact & Lightweight:** At just 159g and 3.5 inches, it fits seamlessly into any plumbing setup.
- • **Proudly American Made:** Support quality craftsmanship with a product manufactured in the USA.
- • **Effortless Installation & Removal:** Save time with a plug designed for quick, hassle-free use.

## Overview

The G.T. Water Products MTP352 Safe-T-Seal is a 3.5-inch combination cleanout plug engineered for easy installation and removal. Featuring a rust-proof, all-plastic design, it reliably seals plumbing systems under up to 50 feet of head pressure, equivalent to three stories. Lightweight and compact, this reusable plug is proudly made in the USA, offering professional-grade durability and peace of mind.

## Description

G.T. Water Products, Inc. MTP352 Safe-T-Seal Combination Cleanout Plug, 3-1/2-Inch

## Features

- 3-1/2-Inch combination cleanout plug
- Easy to install and remove; economical and reusable
- Positive sealing with no metal parts to rust
- Tests head pressure through 3 stories, up to 50-Foot/head pressure
- Made in the U.S.A.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | G.T. Water Products, Inc. |
| Part Number | FBA_MTP352 |
| Product Dimensions | 8.89 x 8.89 x 5.08 cm; 159 g |
| Item model number | GT Water Products - MTP352 |
| Size | 3.5 Inch |
| Item Package Quantity | 1 |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 159 g |

## Product Details

- **Brand:** SAFE-T-SEAL
- **UPC:** 077115352003
- **Global Trade Identification Number:** 00077115352003
- **Number of items:** 1

## Images

![G.T. Water Products, Inc. MTP352 Safe-T-Seal Combination Cleanout Plug, 3-1/2-Inch - Image 1](https://m.media-amazon.com/images/I/718bxl0V0+L.jpg)

## Available Options

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

## Questions & Answers

**Q: Just making absolutely sure - my cleanout hole diameter is 3.5" with no threads. This will fit and tighten up?**
A: yes, this should work for a cleanout hole that is exactly 3.5" in diameter. it holds max head pressure of 50 ft.

**Q: Will this fit a 3 1/4 opening?**
A: Probably yes.  The measurements of cleanouts can be deceptive.  Mine also measured 3-1/4 and yet a 3-1/2 metal fit-all plug worked just fine.  So give it a try.

**Q: Is this safe for drinking water applications?**
A: Item was used for sewar pipe cleanout. I dont think its intended for drinking water applications.

**Q: Is the seal waterproof?**
A: Yes it is waterproof. Essentially it is a pvc part and a rubber part. Tightening it will seal any liquids or smells from escaping from opening. Also because of the materials, in future will make for easy removal and/or replacement.

## Frequently Bought Together

- SAFE-T-SEAL MTP352 Plastic Mechanical Clean-Out Plug, 3.5" HUB
- Cherne 270138 Gripper 3-1/2 in. Black Mechanical Clean Out Plug, Black
- Oatey 33403 4-in. End of Pipe Gripper Mechanical Plug with Galvanized Screw and Wing Nut, 4 Inch, Red

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**Shop now:** [https://www.desertcart.ro/products/162237580-g-t-water-products-inc-mtp352-safe-t-seal-combination](https://www.desertcart.ro/products/162237580-g-t-water-products-inc-mtp352-safe-t-seal-combination)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-23*