The Flow Security Systems Vented Locking Fuel Tank Cap | Secures Transfer & Above Ground Commercial Fuel Tanks | Prevents Theft & Fuel Vandalism | FSS 377M | Male 2" Std Thead

★★★★★ 4.7 109 reviews

$49.95
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$49.95
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Free shipping Free 30-day returns

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Product details

Management number 211861674 Release Date 2026/04/06 List Price $19.98 Model Number 211861674
Category
  • PREVENT UNAUTHORIZED USE: The Flow Security Systems FSS-377 vented fuel cap is a quick and inexpensive way to safeguard costly fuel and oil from theft, tampering, siphoning and vandalism. The FSS-377 is perfect for anyone who want to secure their fuel tanks.
  • MULTIPLE USES: The FSS-377 is designed for use on mobile fuel transfer tanks, as well as above ground commercial tanks.
  • COMPATIBILITY: Fits all 2'' male threaded tanks. Cap is secured to adapter with any 5/16th diameter shackle padlock (not included).
  • INSTALLATION: The adapter is firmly connected to the tank via a wrench. It can be permanently set in place with use of a thread locker.
  • HEAVY DUTY: Manufactured to the highest standards and built to last a lifetime. Cap and adapter are made from high quality carbon steel, CNC machined for precise fit and function, and case hardened for durability and resistance to drilling and damage.
  • BUILT-IN VALVE: The FSS-377 uses a built-in valve to equalize pressure and vacuum. The valve allows the tank to vent when pressure reaches 1.5 psi and releases vacuum at 1.5 oz
  • RETAINING CHAIN: Attached to the inside of the cap is 10” stainless steel chain to retain the cap to the tank during a fill up. This is removable if a larger nozzle needs to be accomodated.
  • SEALED SYSTEM: Inside gasket provides sealing and prevents spillage of the tank contents. May be susceptible to some spillage during the very brief venting time period.
Color Silver zinc plating
Brand Name Flow Security Systems
Style Name Male 2" Std Thead
Item Weight 1.6 Pounds
Manufacturer Flow Security Systems, Inc.
Model Number FSS-377M
Material Type Zinc plated carbon steel
Item Type Name Vented Fuel Tank Cap
Exterior Finish Chrome
Item Dimensions 3.5 x 4 x 3.5 inches
Manufacturer Part Number FSS-377M
Compatible with Vehicle Type All Vehicle Types
Manufacturer Warranty Description One Year

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4.7 out of 5
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109 ratings | 45 reviews
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