---
product_id: 4150870
title: "The Flow Security Systems VersaLock | Vented Locking Fuel Tank Cap | For Transfer & Above Ground Commercial Tanks | Prevents Theft & Secures Fuel Tanks | FSS 754 | Includes Adapter | 1CT"
brand: "flow security systems"
price: "Rp2126382"
currency: IDR
in_stock: true
url: https://www.desertcart.id/products/4150870-the-flow-security-systems-versalock-vented-locking-fuel-tank-cap
store_origin: ID
region: Indonesia
---

# Patented free-spinning lock tech Built-in pressure & vacuum valves Weatherproof self-closing latch The Flow Security Systems VersaLock | Vented Locking Fuel Tank Cap | For Transfer & Above Ground Commercial Tanks | Prevents Theft & Secures Fuel Tanks | FSS 754 | Includes Adapter | 1CT

**Brand:** flow security systems
**Price:** Rp2126382
**Availability:** ✅ In Stock

## Summary

> 🔒 Lock in your fuel’s safety, unlock peace of mind.

## Quick Answers

- **What is this?** The Flow Security Systems VersaLock | Vented Locking Fuel Tank Cap | For Transfer & Above Ground Commercial Tanks | Prevents Theft & Secures Fuel Tanks | FSS 754 | Includes Adapter | 1CT by flow security systems
- **How much does it cost?** Rp2126382 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.id](https://www.desertcart.id/products/4150870-the-flow-security-systems-versalock-vented-locking-fuel-tank-cap)

## Best For

- flow security systems enthusiasts

## Why This Product

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

## Key Features

- • **Keyed Your Way:** Choose keyed alike for convenience or keyed differently for maximum security across multiple tanks.
- • **Pressure Perfected:** Built-in valves equalize pressure and vacuum to protect tank integrity and safety.
- • **Universal Fit & Ready:** Fits all standard 2" male threads and includes adapter for versatile commercial tank compatibility.
- • **All-Weather Durability:** Weatherproof latch seals out dust, dirt, and moisture for reliable performance year-round.
- • **Unbeatable Fuel Theft Defense:** Patented free-spinning design makes unauthorized removal virtually impossible.

## Overview

The Flow Security Systems VersaLock FSS-754 is a heavy-duty, weather-resistant locking fuel tank cap designed for commercial transfer and above-ground tanks. Featuring patented free-spinning technology, built-in pressure and vacuum valves, and flexible keying options, it prevents theft, tampering, and vandalism while ensuring tank safety and convenience. Made from hard non-ferrous alloy with a universal fit, it’s the smart, cost-effective solution for securing valuable fuel assets.

## Description

The Flow Security Systems VersaLock | Vented Locking Fuel Tank Cap | For Transfer & Above Ground Commercial Tanks | Prevents Theft & Secures Fuel Tanks | FSS 754 | Includes Adapter | 1CT

## Features

- PREVENT UNAUTHORIZED USE: The Flow Security Systems PRE-VENT Fuel Cap is a quick and inexpensive way to safeguard costly fuel and oil from theft, tampering, siphoning and vandalism. The VersaLock utilizes our patented free spinning design and is perfect for all business owners who want to secure their transfer fuel tanks.
- MULTIPLE USE: The FFS-754 is designed for use on mobile fuel transfer tanks as well as above ground commercial gas and distillate tanks. The VersaLock has a weather proof self-closing latch covering the face of the lock to prevent dust, dirt, debris and moisture from entering the lock.
- KEYED DIFFERENTLY OR THE SAME: The VersaLock can be keyed alike so that multiple fuel caps can be secured with the convenience of having only one key. Perfect for those who have multiple transfer tanks and don't have to carry different keys for each tank. The VersaLock can also be keyed differently so that each fuel cap can have its own unique key providing added security for your tank.
- BUILT IN VALVE: The FSS-754 uses built in valves to equalize the pressure and vacuum. The pressure vent valve allows the pressure relief valve to open at 1.5 Lbs and vacuum release to open at 1.5 Oz. This heavy duty lock is make from hard non ferrous alloy and fits standard 2 inch male thread.
- PATENTED DESIGN: The FSS-754 is different from any other cap on the market today. It is designed with our patented "free-spinning" technology. When the cap is in the secure mode the cap will free spin making it virtually impossible to remove.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | Flow Security Systems |
| Color | Silver zinc plating |
| Material | Hard non-ferrous alloy |
| Exterior Finish | Silver |
| Item dimensions L x W x H | 3.25 x 3.25 x 2.75 inches |
| Style | Including Adapter |
| Automotive Fit Type | Universal Fit |
| Manufacturer | Flow Security Systems, Inc. |
| Item Weight | 1.7 pounds |
| Product Dimensions | 3.25 x 3.25 x 2.75 inches |
| Item model number | FSS754+Adapter |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | FSS754+Adapter |
| Special Features | Weather Resistant |

## Product Details

- **Brand:** Flow Security Systems
- **Color:** Silver zinc plating
- **Material:** Hard non-ferrous alloy
- **Exterior Finish:** Silver
- **Item dimensions L x W x H:** 3.25 x 3.25 x 2.75 inches

## Images

![The Flow Security Systems VersaLock | Vented Locking Fuel Tank Cap | For Transfer & Above Ground Commercial Tanks | Prevents Theft & Secures Fuel Tanks | FSS 754 | Includes Adapter | 1CT - Image 1](https://m.media-amazon.com/images/I/71HjNjylbxL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: Can i used for isuzu 2003 frr box truck?**
A: Measure the outlet to see if it's there same size

**Q: Is this product fit on a freightliner m2 straight truck??**
A: I don’t thinks so       This fits a 2inch NPT thread         However there is a locking cap for a freightliner tank       Measure to confirm

**Q: Work on a Transfer Flow auxiliary fuel tank ?**
A: We have a Transfer Flow auxiliary fuel tank and it fit great. Not sure if the tanks are the same size.

**Q: Will this cap fit a transfer flow tank ?**
A: We have ours on a transfer fuel tank, but because we have a pump it is not adequate venting and the sides of the tank suck in.   We take the cap off to pump.  If you have a gravity flow tank it may work just fine.

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.id/products/4150870-the-flow-security-systems-versalock-vented-locking-fuel-tank-cap](https://www.desertcart.id/products/4150870-the-flow-security-systems-versalock-vented-locking-fuel-tank-cap)

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*Product available on Desertcart Indonesia*
*Store origin: ID*
*Last updated: 2026-01-28*