---
product_id: 15197863
title: "Magnaflux 25-901 Sonotech Ultragel II Ultrasonic NDT Couplant, 1 gal Bottle"
brand: "magnaflux"
price: "$387.86"
currency: USD
in_stock: true
reviews_count: 1
category: "Magnaflux"
url: https://www.desertcart.us/products/15197863-magnaflux-25-901-sonotech-ultragel-ii-ultrasonic-ndt-couplant-1
store_origin: US
region: United States of America
---

# Superior acoustic coupling Wide temp range -10° to 210°F Corrosion inhibition Magnaflux 25-901 Sonotech Ultragel II Ultrasonic NDT Couplant, 1 gal Bottle

**Brand:** magnaflux
**Price:** $387.86
**Availability:** ✅ In Stock

## Summary

> 🔍 Elevate your ultrasonic testing game with Magnaflux Ultragel II – precision you can feel!

## Quick Answers

- **What is this?** Magnaflux 25-901 Sonotech Ultragel II Ultrasonic NDT Couplant, 1 gal Bottle by magnaflux
- **How much does it cost?** $387.86 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/15197863-magnaflux-25-901-sonotech-ultragel-ii-ultrasonic-ndt-couplant-1)

## Best For

- magnaflux enthusiasts

## Why This Product

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

## Key Features

- • **Cost-Effective Excellence:** Premium quality at a price that beats OEM gels
- • **Broad Temperature Resilience:** Operates seamlessly from freezing cold to scorching heat
- • **Unmatched Acoustic Performance:** Crystal-clear signal transmission for precise flaw detection
- • **Dual-Action Chemical Protection:** Prevents corrosion while enhancing gel longevity
- • **Industry's Most Specified Couplant:** Trusted by pros for flawless ultrasonic testing

## Overview

Magnaflux 25-901 Sonotech Ultragel II is a top-tier ultrasonic couplant gel designed for professional NDT applications. It delivers outstanding acoustic performance and corrosion protection, functioning reliably across a broad temperature range (-10° to 210°F). Ideal for flaw detection, thickness gauging, and acoustic emission testing, this 1-gallon bottle offers industrial-grade quality at a competitive price, making it the go-to choice for precision-driven professionals.

## Description

NA

Review: Great price! I purchased this for use with an ... - Great price! I purchased this for use with an Ultrasonic Gage verification tester and see no performance difference between the magnaflux Ultragel and the gel that came with the test equipment. The only difference between the 2 is that the pricing on the Magnaflux is much cheaper per ounce.

## Features

- Recognized as the industry most specified and used Ultrasonic couplings
- Outstanding acoustic performance, chemical characteristics and corrosion inhibition
- Ideal for flaw detection, thickness gauging, flow metering and acoustic emission testing across a broad temperature boundary (-10° to 210° F)
- Model Number: 387-25-901

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00DAN8LBO |
| Best Sellers Rank | #156,307 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #721 in Industrial Lubricants |
| Brand | Magnaflux |
| Date First Available | April 28, 2015 |
| Flash Point | 211 Degrees Fahrenheit |
| Item Form | Gel |
| Item Weight | 8 ounces |
| Item model number | 387-25-901 |
| Liquid Volume | 128 Fluid Ounces |
| Manufacturer | Magnaflux |
| Material | Gel |
| Number of Items | 1 |
| Package Information | Bottle |
| Product Dimensions | 7.4 x 7.5 x 11.5 inches |
| Recommended Uses For Product | corrosion protection |
| Specific Uses For Product | Commercial Use Only |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 210 Degrees Fahrenheit |

## Product Details

- **Brand:** Magnaflux
- **Item Weight:** 8 ounces
- **Liquid Volume:** 128 Fluid Ounces
- **Material:** Gel
- **Package Information:** Bottle

## Images

![Magnaflux 25-901 Sonotech Ultragel II Ultrasonic NDT Couplant, 1 gal Bottle - Image 1](https://m.media-amazon.com/images/I/71VIi8EhRyL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great price! I purchased this for use with an ...
*by J***R on November 7, 2017*

Great price! I purchased this for use with an Ultrasonic Gage verification tester and see no performance difference between the magnaflux Ultragel and the gel that came with the test equipment. The only difference between the 2 is that the pricing on the Magnaflux is much cheaper per ounce.

## Frequently Bought Together

- Magnaflux 25-901 Sonotech Ultragel II Ultrasonic NDT Couplant, 1 gal Bottle
- Markal 12-Pack White Paint Markers - Permanent, Waterproof & UV Resistant for Metal, Wood, Tires - Home & Industrial Use, Fade-Resistant, Made in USA - Works on Oily, Icy, Wet, Dry & Cold Surfaces

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.us/products/15197863-magnaflux-25-901-sonotech-ultragel-ii-ultrasonic-ndt-couplant-1](https://www.desertcart.us/products/15197863-magnaflux-25-901-sonotech-ultragel-ii-ultrasonic-ndt-couplant-1)

---

*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-14*