---
product_id: 45678160
title: "3\" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack"
brand: "green goods"
price: "28342 Ft"
currency: HUF
in_stock: true
reviews_count: 8
url: https://www.desertcart.hu/products/45678160-3-uniseal-flexible-tank-adapter-bulkhead-5-pack
store_origin: HU
region: Hungary
---

# Compatible with 3/8” tanks Installs in minutes Made in the USA 3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack

**Brand:** green goods
**Price:** 28342 Ft
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade Your Tank Game with Ease!

## Quick Answers

- **What is this?** 3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack by green goods
- **How much does it cost?** 28342 Ft with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/45678160-3-uniseal-flexible-tank-adapter-bulkhead-5-pack)

## Best For

- green goods enthusiasts

## Why This Product

- Trusted green goods brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Bulk Savings:** Five-pack ensures you’re always prepared.
- • **User-Friendly:** Comes with detailed instructions for hassle-free setup.
- • **Durable Design:** Crafted from high-quality plastic and rubber.
- • **Quick Installation:** Get your tanks ready in no time!
- • **Versatile Compatibility:** Perfect for tanks with up to 3/8” wall thickness.

## Overview

The 3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack is a high-quality, USA-made solution designed for quick and easy installation. Compatible with tanks featuring a wall thickness of up to 3/8”, this durable adapter is crafted from premium plastic and rubber, ensuring long-lasting performance. Each pack includes five adapters, making it a smart choice for those who value efficiency and reliability.

## Description

Uniseal is simply the world's best seal and installing the Uniseal is a simple process. After cutting a hole in the wall of a tank or other surface, the seal is inserted. Then the pipe is coated with a slippery detergent (i.e. dish soap) and pushed into the seal. Uniseal products replace traditional plumbing hardware with a single injection molded unit requiring no component parts. It was designed to solve many of the issues of pipe to tank connections. For many industries pipe to tank seals are traditionally among the most complex connections to manufacture. Traditional seals require multiple parts such as, rigid flanges, bolts, washers, o-rings, along with long assembly times and high production costs. The Du Pont Alcryn is the key to the liquid-tight seal. When the pipe is pushed through the rubber-like Uniseal from the outside, the inside Alcryn wall becomes thin enough to allow the pipe to squeeze through and then forms a liquid-tight seal. The coefficient of friction with the plastic pipe is roughly three times higher than any other material which allows it to create a better seal than with any other material. In static conditions the seal is good up to 65 PSI. Uniseal can withstand pressure, and suction, acids, oils, greases, gasoline, sewage, waste, heat and cold. It offers long life, easy installation and reduced labor and material costs.

## Features

- Made in the USA
- 100% Guaranteed
- Installs in minutes
- Compatible with tanks up to 3/8” wall thickness
- Comes with detailed instructions

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Thread Size | 3 inch |
| Connector Type | Adapter |
| Color | Black |
| Material | Plastic, Rubber |

## Product Details

- **Material:** Plastic, Rubber
- **Brand:** Green Goods
- **Color:** Black
- **Connector Type:** Adapter
- **Thread Size:** 3 inch
- **Number of Pieces:** 5
- **Manufacturer:** Uniseal
- **UPC:** 637262982661

## Images

![3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack - Image 1](https://m.media-amazon.com/images/I/61NJ8EEBwwL.jpg)
![3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack - Image 2](https://m.media-amazon.com/images/I/71a6nAeIW7S.jpg)
![3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack - Image 3](https://m.media-amazon.com/images/I/61EsMpxxy-S.jpg)
![3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack - Image 4](https://m.media-amazon.com/images/I/71iaGQEcqGS.jpg)
![3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack - Image 5](https://m.media-amazon.com/images/I/71-NQIgtopS.jpg)

## Questions & Answers

**Q: Think this would work for 3inch rv waste tank drain valve connected with 3inch pvc pipe?**
A: Yes, however I would personally go with a bulkhead adapter in that case. Only because these fittings over time will inevitably crack.

**Q: On the 3 inch Uniseal, what is the outer diameter of the outer flange?**
A: The outside diameter to the 3" Uniseal is 5".

**Q: How would this work connecting an inground rubber pond liner to a 275 gal tote also in ground using either a pipe or directly side by side?**
A: This would work for the Tote but will not work for the liner.

**Q: So I would drill a 4in hole in order to accommodate the uniseall?**
A: Yes.  You need to drill a 4" hole.  I had to use some soapy water to get the uniseal to seat into the 4" hole.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    No no from core and schedule 40 are not different sizes you are totally wrong.
  

*by L***M on Reviewed in the United States on December 10, 2023*

If foam core and schedule 40 were different size od you would have to buy different fittings.  IVE BEEN A PLUMBER FOR 36 YEARS.  EVEN THIN WALL PIPE HAS THE SAME OD. The od of foam core and schedule 40 pressure are EXACTLY THE SAME.  Folks these things work perfectly but yes it’s a bitch to get them inserted but that’s why they don’t leak.  Put grease or soap on them and use a lever to force it into place.  YOU MUST CHAMFER THE PIPE on the end to get it through!!!  To the guy that said schedule 40 and foam are different sizes…….NOPE

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Made in USA !!!
  

*by M***A on Reviewed in the United States on June 6, 2020*

Worked well, pleased to pay for a fine USA manufactured item.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Easy to order & a great company overall.
  

*by J***E on Reviewed in the United States on April 30, 2020*

Great products & A1 service!!! Thank you!!

## Frequently Bought Together

- 3" UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack
- 2'' UNISEAL Flexible Tank Adapter (bulkhead) - 6 Pack
- 1'' UNISEAL Flexible Tank Adapter (Bulkhead) - 5 Pack

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-07*