---
product_id: 44110431
title: "1/2\" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack"
brand: "green goods"
price: "€ 16.91"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/44110431-1-2-uniseal-flexible-tank-adapter-bulkhead-2-pack
store_origin: FI
region: Finland
---

# 1/2" pipe ID precision fit Single-piece injection molded design Proudly made in the USA 1/2" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack

**Brand:** green goods
**Price:** € 16.91
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal smarter, not harder — the last tank adapter you'll ever need!

## Quick Answers

- **What is this?** 1/2" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack by green goods
- **How much does it cost?** € 16.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/44110431-1-2-uniseal-flexible-tank-adapter-bulkhead-2-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

- • **Universal Compatibility:** Fits pipes with 1/2" ID and walls up to 3/8" thick, perfect for diverse plumbing and industrial applications.
- • **Streamlined Installation:** No bolts, washers, or multiple parts—just cut, insert, and push for a flawless seal in seconds.
- • **Effortless Leak-Proof Seal:** Innovative Du Pont Alcryn material ensures a liquid-tight fit up to 65 PSI, eliminating leaks and costly downtime.
- • **Durability Meets Versatility:** Resistant to acids, oils, gasoline, sewage, heat, and cold—built to last in any environment.
- • **Made in the USA with Precision:** Crafted domestically for superior quality and reliability you can trust.

## Overview

The 1/2" UNISEAL Flexible Tank Adapter is a revolutionary single-piece rubber seal designed for quick, reliable pipe-to-tank connections. Engineered with Du Pont Alcryn, it provides a superior liquid-tight seal up to 65 PSI without the hassle of traditional multi-part fittings. Made in the USA, this durable adapter resists harsh chemicals and extreme temperatures, making it the go-to solution for professionals seeking efficiency and longevity in plumbing and industrial setups.

## 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

- Pipe ID - 1/2'' (13mm)
- Pipe OD - .84" (21mm)
- Holesaw size: 1 1/4'' (32mm)
- Up to 3/8" Wall Thickness. (9mm)
- Made in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Size | 1/2 inch |
| Material | Rubber |
| Brand | Green Goods |
| Color | Black |
| Connector Type | Flange |
| Thread Size | 1 inch |
| Item Weight | 0.11 Kilograms |
| Number of Pieces | 2 |
| Manufacturer | The Uniseal Warehouse |
| UPC | 637262982593 |
| Part Number | U050 |
| Item Weight | 3.98 ounces |
| Package Dimensions | 3.5 x 3.27 x 0.71 inches |
| Item model number | U050 |
| Is Discontinued By Manufacturer | No |
| Batteries Included? | No |
| Batteries Required? | No |

## Product Details

- **Size:** 1/2 inch
- **Material:** Rubber
- **Brand:** Green Goods
- **Color:** Black
- **Connector Type:** Flange
- **Thread Size:** 1 inch
- **Item Weight:** 0.11 Kilograms
- **Number of Pieces:** 2
- **Manufacturer:** The Uniseal Warehouse
- **UPC:** 637262982593

## Images

![1/2" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack - Image 1](https://m.media-amazon.com/images/I/61rWeJIyl4L.jpg)
![1/2" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack - Image 2](https://m.media-amazon.com/images/I/71olU0PX-SS.jpg)
![1/2" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack - Image 3](https://m.media-amazon.com/images/I/71nagDrR8DS.jpg)
![1/2" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack - Image 4](https://m.media-amazon.com/images/I/71Sz13wsXYS.jpg)
![1/2" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack - Image 5](https://m.media-amazon.com/images/I/71-NQIgtopS.jpg)

## Questions & Answers

**Q: Will this fit a 1/2" od (pvc) pipe?**
A: In the US, PVC pipe is sold by it's inside diameter (id).  Uniseals are size to the pipe they fit.  So these fit 1/2" PVC pipe.   If your pipe has an outside diameter (od) of 1/2" these will not fit.

**Q: Can this be used on a diesel fuel tank?**
A: No. That would be very dangerous as they are not perfect mechanical seals and definitely not rated for fuel containers. You need solid bulkhead connectors of the appropriate size for your tank.

**Q: How close can you put your hole to the bottom of container with 1/2" Uniseal to allow for the most complete draining?**
A: That is a difficult question.   As every container has a slightly different shape.  The main sealing feature of these is the compression of the seal between the drilled hole and the PVC being pushed through the seal.  You could probably get as close as an 1.5 " from the bottom to the center of your hole.  I would use your best judgement once you receive it and see where you want to install it on your container.

**Q: What size hole saw is required for using the 1/2" and 1" Uniseals?**
A: Hello, 
For the 1/2" Uniseal you will use a 1.25 hole saw and for the 1" Uniseal you will use 1.75 hole saw.  Hope this is helpful to you.

## Frequently Bought Together

- 1/2" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack
- 1" UNISEAL Flexible Tank Adapter (Bulkhead) - 2 Pack
- 3/4" Uniseal Flexible Tank Adapter - Perfect for Attaching 3/4-inch pipe to Curved Surfaces, Storage Drums, Buckets, and More - Ideal for Situations Where Bulkheads Fail - 2 Pack

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**Shop now:** [https://www.desertcart.fi/products/44110431-1-2-uniseal-flexible-tank-adapter-bulkhead-2-pack](https://www.desertcart.fi/products/44110431-1-2-uniseal-flexible-tank-adapter-bulkhead-2-pack)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-09*