---
product_id: 129625461
title: "GROZ 55-Gallon Drum Level Indicator for Stationary Oil & Fuel Tanks, 3/4\" Thread Fits Standard Bung, Chemical-Resistant Gauge with 0-55 Gal Display (48003)"
brand: "groz"
price: "$75.48"
currency: USD
in_stock: true
reviews_count: 11
category: "Groz"
url: https://www.desertcart.us/products/129625461-groz-55-gallon-drum-level-indicator-for-stationary-oil-fuel
store_origin: US
region: United States of America
---

# 0-55 gallon clear dial with red low-level zone Fits standard 3/4" NPT bung, pump-friendly design Mechanical float system, zero power needed GROZ 55-Gallon Drum Level Indicator for Stationary Oil & Fuel Tanks, 3/4" Thread Fits Standard Bung, Chemical-Resistant Gauge with 0-55 Gal Display (48003)

**Brand:** groz
**Price:** $75.48
**Availability:** ✅ In Stock

## Summary

> ⛽ Stay Ahead of the Curve with GROZ – Because Running Dry is So Last Season!

## Quick Answers

- **What is this?** GROZ 55-Gallon Drum Level Indicator for Stationary Oil & Fuel Tanks, 3/4" Thread Fits Standard Bung, Chemical-Resistant Gauge with 0-55 Gal Display (48003) by groz
- **How much does it cost?** $75.48 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/129625461-groz-55-gallon-drum-level-indicator-for-stationary-oil-fuel)

## Best For

- groz enthusiasts

## Why This Product

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

## Key Features

- • **Power-Free Precision:** Mechanical float and planetary gear system deliver reliable, maintenance-free readings—no batteries or wiring required.
- • **Seamless Workflow Integration:** Threads into standard 3/4" bung, leaving your 2" pump hole free—monitor levels without disrupting operations.
- • **Versatile Chemical Resistance:** Durable polyethylene construction handles oils, fuels, coolants, and industrial chemicals with adjustable float calibration for accuracy.
- • **Never Run Dry, Always Prepared:** Instant visual fluid level monitoring prevents costly downtime with a clear 0-55 gallon dial and red low-level alert zone.
- • **Dual-Unit Display for Global Use:** Reversible dial switches easily between gallons and liters, adapting to your measurement preference in seconds.

## Overview

The GROZ 55-Gallon Drum Level Indicator is a rugged, mechanical gauge designed for stationary oil and fuel drums. It fits standard 3/4" NPT bung openings, providing instant, battery-free fluid level readings from 0 to 55 gallons with a clear dial and red low-level warning. Its chemical-resistant polyethylene body supports a wide range of fluids, while the reversible display toggles between gallons and liters. Ideal for shops, farms, and warehouses, it ensures uninterrupted operations by helping you reorder before running out.

## Description

Keep your shop, warehouse, or farm running smoothly with the GROZ 48003 Drum Level Indicator. This mechanical gauge threads into your standard 55-gallon drum's 3/4" NPT bung opening, providing instant visual monitoring of fluid levels from 0 to 55 gallons without removing your pump or disrupting operations.Perfect for monitoring oil drums in auto shops, diesel fuel storage on farms, chemical drums in manufacturing facilities, and bulk liquid inventory in warehouses. The clear dial face with red low-level warning zone lets you see at a glance when it's time to reorder, helping you avoid unexpected run-outs and costly downtime.The chemical-resistant polyethylene construction stands up to harsh fluids including motor oil, diesel, gasoline, water, coolants, antifreeze, detergents, and industrial chemicals. A mechanical float system with precision planetary gears translates liquid level changes into smooth dial readings - no batteries, wiring, or power source needed. The built-in air release vent prevents pressure issues during dispensing.Installation takes just minutes: thread the indicator into the small 3/4" bung hole, keeping your 2" opening free for your pump. The reversible display flips between gallons and liters to match your preference. The adjustable float can be calibrated for different liquid viscosities.This gauge is designed for stationary drum applications and provides approximate level readings to help manage inventory effectively. Ideal for fixed installations in shops, warehouses, and storage facilities.

Review: Good Product - Good product. Fit in 3/4 threaded bung and works.
Review: Very cheap and break - I bought two of these and both broke the first day. My barrel is mounted on a tractor so the liquid is moving. This breaks the float. Also on the last one the clear cover fell off and the guts spilled out. Cheap China junk! I won't be waisting more money on another one.

## Features

- NEVER RUN DRY - Know at a glance when your 55-gallon drum needs refilling; clear 0-55 gallon dial with red low-level zone lets you reorder oil, fuel, or chemicals before running out, preventing costly downtime in your shop or facility
- MONITOR AND PUMP SIMULTANEOUSLY - Threads into standard 3/4" NPT bung opening while leaving your 2" hole completely free for pump installation; check fluid levels without removing your dispensing equipment or disrupting your workflow
- NO BATTERIES OR WIRING REQUIRED - Mechanical float system operates reliably without power, batteries, or electronics; smooth planetary gear mechanism translates float movement to accurate dial readings with zero maintenance or ongoing costs
- WORKS WITH MULTIPLE FLUID TYPES - Chemical-resistant polyethylene construction handles oil, diesel fuel, gasoline, water, coolants, antifreeze, detergents, and industrial chemicals; adjustable float calibration ensures accuracy across different liquid viscosities
- DESIGNED FOR STATIONARY DRUMS - Ideal for shop oil storage, warehouse chemical drums, farm fuel tanks, and facility bulk liquid storage; reversible display switches between gallons (0-55) and liters (0-210) by simply flipping the dial cover

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077WRMPMP |
| Best Sellers Rank | #31,419 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #1 in Liquid Level Sensors |
| Date First Available | December 3, 2017 |
| Item Weight | 5.3 ounces |
| Item model number | 48003 |
| Manufacturer | Groz |
| Product Dimensions | 9.45 x 1.97 x 1.77 inches |

## Images

![GROZ 55-Gallon Drum Level Indicator for Stationary Oil & Fuel Tanks, 3/4" Thread Fits Standard Bung, Chemical-Resistant Gauge with 0-55 Gal Display (48003) - Image 1](https://m.media-amazon.com/images/I/61FsqP+X+CL.jpg)

## Questions & Answers

**Q: Does this still allow the drum to vent? And has anyone use this on the B side of closed cell foam(polyol resin)?**
A: Not really which is kinda stupid. We use it for our oil drums and always have issues with venting, eventually we just removed it because it was more trouble then it’s worth.

**Q: is the gauge water tight to be installed in the utside ? I would hate to get condensation and not be able to read it....**
A: No It is not water tight.  Not for outdoor use.

**Q: where is it madE?**
A: Probably china

**Q: do you have a version that will fit on the 2'' port**
A: Check your 2” port cap, some of them have a 3/4” threaded hole in the middle. You’ll have to punch out or cut the hole, but this fit perfectly in mine. Note, I did buy and install a short 3/4” riser to allow the gauge to screw on snuggly onto the 2” cap.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good Product
*by A***R on December 13, 2025*

Good product. Fit in 3/4 threaded bung and works.

### ⭐ Very cheap and break
*by R***G on September 19, 2025*

I bought two of these and both broke the first day. My barrel is mounted on a tractor so the liquid is moving. This breaks the float. Also on the last one the clear cover fell off and the guts spilled out. Cheap China junk! I won't be waisting more money on another one.

### ⭐⭐⭐⭐⭐ Correct measurement
*by R***R on February 7, 2025*

Best product ever, it worked well for our chemical A and B drum. And it’s very acutely measuring the level.

## Frequently Bought Together

- GROZ Drum Level Indicator | ¾-Inch Thread | Polyethylene Construction | Perfect Fluid Gauge for Use on Oil & Fuel Drums (48001/48003)
- Justrite 08530 Polyethylene Vertical Drum Fill Pop Up Gauge, 3/4" Diameter x 5" Length
- Duda Energy dwrench Aluminum Drum Wrench for Opening 10 gal, 15 gal, 20 gal, 30 gal and 55 gal Barrels Standard, 2" Bung Racing Fuel Methanol, 2"

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-28*