---
product_id: 462896481
title: "4'' UNISEAL Flexible Tank Adapter (Bulkhead)"
brand: "the uniseal warehouse"
price: "B/.114"
currency: PAB
in_stock: true
url: https://www.desertcart.com.pa/products/462896481-4-uniseal-flexible-tank-adapter-bulkhead
store_origin: PA
region: Panama
---

# Fits 4.5" pipe outer diameter Supports up to 3/8" wall thickness Proudly made in the USA 4'' UNISEAL Flexible Tank Adapter (Bulkhead)

**Brand:** the uniseal warehouse
**Price:** B/.114
**Availability:** ✅ In Stock

## Summary

> 🔧 Seal it right, seal it tight — the pro’s choice for tank adapters!

## Quick Answers

- **What is this?** 4'' UNISEAL Flexible Tank Adapter (Bulkhead) by the uniseal warehouse
- **How much does it cost?** B/.114 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/462896481-4-uniseal-flexible-tank-adapter-bulkhead)

## Best For

- the uniseal warehouse enthusiasts

## Why This Product

- Trusted the uniseal warehouse brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Universal Compatibility:** Holesaw size of 5" (127mm) accommodates a wide range of tank installations.
- • **Precision Fit, Zero Hassle:** Designed for a perfect 4.5" pipe OD fit, ensuring leak-proof connections every time.
- • **Flexible Design for Tough Jobs:** Adapts seamlessly to up to 3/8" wall thickness, making it ideal for diverse tank setups.
- • **Made in the USA, Built to Last:** Crafted domestically with premium materials for unmatched durability and reliability.
- • **Bulkhead Strength Meets Flexibility:** Combines rigid bulkhead support with flexible sealing to prevent leaks under pressure.

## Overview

The 4'' UNISEAL Flexible Tank Adapter is a US-made, precision-engineered bulkhead fitting designed to fit pipes with a 4.5" outer diameter. It supports tank walls up to 3/8" thick and requires a 5" holesaw for installation, offering a reliable, flexible, and leak-resistant connection ideal for professional-grade tank setups.

## Description

Full description not available

## Features

- Made in the USA
- Pipe OD - 4.5" (114mm)
- Holesaw size: 5" (127mm)
- Up to 3/8" Wall Thickness.

## Product Details

- **Size:** 127 mm
- **Material:** Sarlink 4165
- **Brand:** The Uniseal Warehouse
- **Color:** Black
- **Item dimensions L x W x H:** 5.72 x 5.72 x 0.72 inches
- **Connector Type:** Adapter
- **Thread Size:** 4 inch
- **Number of Pieces:** 1
- **Manufacturer:** The Uniseal Warehouse
- **UPC:** 799475705816

## Images

![4'' UNISEAL Flexible Tank Adapter (Bulkhead) - Image 1](https://m.media-amazon.com/images/I/61j-nctOE8L.jpg)
![4'' UNISEAL Flexible Tank Adapter (Bulkhead) - Image 2](https://m.media-amazon.com/images/I/61uY-OCjhXL.jpg)
![4'' UNISEAL Flexible Tank Adapter (Bulkhead) - Image 3](https://m.media-amazon.com/images/I/71m82QWcBcL.jpg)
![4'' UNISEAL Flexible Tank Adapter (Bulkhead) - Image 4](https://m.media-amazon.com/images/I/71a6nAeIW7S.jpg)
![4'' UNISEAL Flexible Tank Adapter (Bulkhead) - Image 5](https://m.media-amazon.com/images/I/71-NQIgtopS.jpg)

## Questions & Answers

**Q: Is this designed for a pipe with a 4.5" od, or a 4" od?**
A: It made to fit SCH 40 PVC Pipe which has an OD of 4.5" and an ID of 4". PVC pipe is sold by its inside dimension. Uniseals are labeled for the size pipe they fit. In this case 4" pvc.

**Q: What material is the seal made of? is it polyethylene or polypropylene and does it meet fda guidelines for potable water?**
A: It is made from Alcryn 2070.

**Q: Will this work with 4" sewer pipe?  it has an od of 4.2" instead of the 4.5" od of schedule 40.**
A: 4.2 = approximately 4.016" there is slight gap

4.5=approximately 4.0375"

see if there is a bell reducer. or a flex coupling

**Q: hola, de cuantas pulgadas o milimetros tiene que ser el hueco en el tanque ?**
A: El hueco para el uneseal tiene que ser del tamaño de la parte gruesa

## Frequently Bought Together

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

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**Shop now:** [https://www.desertcart.com.pa/products/462896481-4-uniseal-flexible-tank-adapter-bulkhead](https://www.desertcart.com.pa/products/462896481-4-uniseal-flexible-tank-adapter-bulkhead)

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*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-02-15*