PIG® Frameless Storm Drain Filter for Small Drains

Catch basin insert protects small drains in high-traffic areas while filtering oil, sediment, debris and trash from stormwater runoff.

• Designed for superior filtration and easy handling
• Frameless design is ideal for small drains of any shape that don't work with our Adjustable Frame Storm Drain Filter or Catch Basin Insert Filtration System
• Heavy-duty, high-visibility strap allows easier handling and removal
• Treats more water and removes more oil than basic storm drain filters; accumulation pocket fits shallow drains to hold sediment, debris and trash
• Four-stage filtration: PET construction removes contaminants from stormwater at multiple stages, increasing the amount of pollutants captured
• Stormwater flows through drain grate onto fabric shelf (Stage 1), passes over filter ring (Stage 2) into collection bag (Stage 3) and over four sets of filter strips (Stage 4)
• Patented filter ring channels water to center of collection bag to prevent untreated water from escaping through overflow ports
• Filter strips float freely like tentacles to remove hydrocarbons as water moves through collection bag
• Overflow ports help prevent blockage during high water flow
• Affordably priced so you can protect more drains at your facility; no need to pick and choose which ones you can afford to safeguard
• Fits circular drain sizes 9" to 20" in diameter
• Fits irregular, rectangular and square drain sizes 9" to 20" width to 9" to 20" length
• Trim to allow 3" of material to extend above grate
• Pore size is 0.074 mm, 74 microns, 0.0029 inches or 200 sieve