Drainiac® Pre-Filter System for Above-Ground Containment: SPL118


Includes: 4 Silt Trap Socks & 8 HuskyFlex Sheets

Drainiac® Pre-Filter Systems capture leaves and large debris as well as fine silt and sediment to prevent premature clogging of Drainiac® Petroleum Filter Valves.



Made in the USA

Made in the USA

Filters Oil from Water

Filters Oil from Water



Stop wasting money on failed Petroleum Filter Valves that are clogged with sediment and debris

Our studies prove that 90%+ of expensive petroleum filter valves shut off because they’re full of sediment – not oil or petroleum. Many facilities waste tens of thousands of dollars on replacement petroleum filter valves every year because of sediment!

After studying the problem side-by-side with our clients, we engineered an innovative pre-filter system that captures silt, sediment, and debris to extend the life of petroleum filter valves. Pre-filter systems also make routine maintenance faster and easier.

  • Silt Trap Pre-Filter Socks stop larger sediment, leaves, and debris in their tracks, prolonging the life of your Drainiac® Petroleum Filter Valve
  • Silt Trap Pre-Filter Socks are also used to weigh down your HuskyFlex Pre-Filter Sheets to prevent them from blowing away
  • HuskyFlex Pre-Filter Sheets filter out the finer sediment, down to 400 microns
  • HuskyFlex Pre-Filter Sheets are also engineered to remove oil and fuel sheens to further prolong filter valve life.

Learn More:

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



Before and After the Drainiac® Petroleum Filter Valve System

Are you still draining secondary containment stormwater by hand?

Filter and encapsulate sheens from your stormwater 24/7

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

Product Specifications

Product Specifications

Substance Filtered:  Oil, Sediment, Debris & Trash

Sold as:  8 HuskyFlex sheets & 4 Silt Trap socks


Drainiac HuskyFlex Pre-Filter Sheet:  16” x 30” per sheet

Drainiac Silt Trap Socks:  3.5” x 1.5” x 24” per sock

Max Flow Rate:  110 gal./min.

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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