---
product_id: 16197214
title: "MTP352 Plastic Mechanical Clean-Out Plug, 3.5\" HUB"
brand: "safe-t-seal"
price: "$52.35"
currency: USD
in_stock: true
reviews_count: 8
url: https://www.desertcart.ec/products/16197214-mtp352-plastic-mechanical-clean-out-plug-3-5-hub
store_origin: EC
region: Ecuador
---

# 50 ft max head pressure 3.5-inch hub size Reusable & easy install MTP352 Plastic Mechanical Clean-Out Plug, 3.5" HUB

**Brand:** safe-t-seal
**Price:** $52.35
**Availability:** ✅ In Stock

## Summary

> 🔩 Seal smart, test tough — the plug pros rely on!

## Quick Answers

- **What is this?** MTP352 Plastic Mechanical Clean-Out Plug, 3.5" HUB by safe-t-seal
- **How much does it cost?** $52.35 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/16197214-mtp352-plastic-mechanical-clean-out-plug-3-5-hub)

## 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

- • **Made in the USA:** Quality you can trust, backed by a 1-year limited warranty.
- • **Pressure-Test Ready:** Handles up to 50 feet of head pressure, perfect for multi-story systems.
- • **Reusable & Removable:** Save time and money with a plug that’s easy to remove and reuse.
- • **Rust-Free Durability:** All-plastic design means zero metal parts to corrode or fail.
- • **Effortless Installation:** Tighten with a crescent wrench—no special tools needed.

## Overview

The MTP352 Plastic Mechanical Clean-Out Plug is a 3.5-inch, reusable plumbing plug designed for easy installation without gluing or metal parts. It withstands up to 50 feet of head pressure, making it ideal for multi-story pressure testing. Made in the USA with a 1-year warranty, it offers a rust-free, durable solution for professional-grade plumbing maintenance.

## Description

Product Description               This safe-t-seal 3-1/2-Inch combination cleanout plug is 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.                  From the Manufacturer               This safe-t-seal 3-1/2-Inch combination cleanout plug is 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.

## Features

- Includes one 3.5 inch mechanical test plug
- Easy to install tighten with crescent wrench, removable/reusable
- No gluing, no metal parts that will rust
- Max head pressure 50 feet, PSIG pressure 22
- Made in U.S.A

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Metal, Plastic |
| Brand | SAFE-T-SEAL |
| Color | Blue |
| UPC | 077115352003 |
| Global Trade Identification Number | 00077115352003 |
| Number of Items | 1 |
| Manufacturer | G.T. Water Products, Inc. |
| Part Number | FBA_MTP352 |
| Item Weight | 5.6 ounces |
| Product Dimensions | 3.5 x 3.5 x 2 inches |
| Item model number | GT Water Products - MTP352 |
| Size | 3.5 Inch |
| Item Package Quantity | 1 |
| Measurement System | inch |
| Included Components | GT Water Products - MTP352 |
| Batteries Included? | No |
| Batteries Required? | No |
| Warranty Description | 1 year limited warranty against defective material/workmanship. |

## Product Details

- **Material:** Metal, Plastic
- **Brand:** SAFE-T-SEAL
- **Color:** Blue
- **UPC:** 077115352003
- **Global Trade Identification Number:** 00077115352003

## Images

![MTP352 Plastic Mechanical Clean-Out Plug, 3.5" HUB - 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.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Fit perfectly!
*by D***S on March 24, 2025*

Great price, fast shipping!!

### ⭐⭐⭐⭐⭐ Awesome solution for my old iron drain
*by E***E on May 29, 2024*

I have a 70 year old house. Outside on patio there is a drain with a check valve and a clean out. I needed to remove clean out but the brass plug was fused to iron pipe. I beat and chiseled it out knowing I was going to struggle to find a fix, but had to be done. I found this and am amazed at how well it fixed my issue. The clean out measures 3 1/2” bit I knew I wrecked the threads and still had some of old brass plug left there. This dropped right in with a little push and then the tapered threaded plug tightened it up nicely. Also know it will come back out if needed. I’m thrilled.

### ⭐⭐⭐⭐⭐ WORKED GREAT
*by D***E on September 20, 2024*

It was too big to fit with the expanding center screw adjusted all the way to the loose position. After completely removing the expanding center adjusting screw it fit perfect with a few light taps with a hammer. Worked great with no leaks!

## 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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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-20*