Drainiac® HuskyFlex Pre-Filter Sheets: SPL117


16” x 30”, 8 sheets

Use HuskyFlex Pre-Filter Sheets to prevent sediment from entering secondary containment hydrocarbon filters.



Made in the USA

Made in the USA

Filters Oil from Water

Filters Oil from Water



HuskyFlex Pre-Filter Sheets extend the life of your secondary containment hydrocarbon filters

Simplify maintenance of secondary containment systems and extend the lifespan of your hydrocarbon filter valve. Install on the interior of your containment, covering the outlet pipe to prevent fine sediment and debris from prematurely clogging hydrocarbon stop valve solutions. HuskyFlex Pre-Filter Sheets:

  • trap dirt, debris, and trash
  • captures oil sheens
  • prolong the life of filter valves
  • are faster and easier to maintain
  • are UV-resistant for long outdoor life

Reduce hydrocarbon filter valve purchases by up to 90%

Did you know that suspended solids are nine times more likely than oil to cause hydrocarbon filter valves to shut off? HuskyFlex Pre-Filter Sheets can save you thousands of dollars in replacing filter valves that are clogged with dirt! Works great with the Drainiac® Petroleum Filter Valve.

Learn More:

Installation Guide: Five Easy Steps

Blog: How to Prevent Secondary Containment System Overflows and Oil Discharges

Technology: Harnassing Innovation to Achieve Perfect Stormwater Discharge

In the Lab: Drainiac® Petroleum Filter Valves – TOG in Stormwater Test

In the Field: Secondary Containment Systems at Bulk Liquid Terminals

Regulations: Secondary Containment Systems


Drainiac® Installation Guide

Drainiac® Inspection and Maintenance Guide

Drainiac® Brochure

Drainiac® Product Line Catalog

Secondary Containment Regs in a Nutshell



Drainiac® Petroleum Filter Valve reduces the risk of accidental oil discharges

Filter and encapsulate sheens from your stormwater 24/7

Before and After the Drainiac® Petroleum Filter Valve System

Are you still draining secondary containment stormwater by hand?

Product Specifications

Product Specifications

Substance Filtered:  Oil, Sediment, Debris & Trash

Dimensions:  16” x 30” per sheet

Sold as:  8 sheets

Weight: 5.3 oz.

Package Weight: 7 lbs.

Pore Size:  400 micron

Max Flow Rate:  10 gallons per minute at 1-inch head pressure

Recycled Content:  No

UV Resistant:  Yes

View Installation Guide →

Compliance and Restrictions

Compliance and Restrictions

  • DO NOT use with acids, bases or oxidizers
  • Dispose of used product in compliance with local, state & federal regulations

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