PL-68 Effluent Filter

The PL-68 is much more than just an effluent filter. The housing can also be used as an inlet baffle (tee) or, with any 4” outlet septic tank filter. The housing is designed to accept Polylok’s snap in gas deflector to deflect gas bubbles away from the tee and to keep the solids in the tank. The PL-68 is ideal for residential waste flows up to 800 GPD.


  • Offers 68 linear feet of 1/16” filter slots, which significantly extends time between cleaning
  • Accepts 3/4” PVC handle
  • Locks in any 360° position when used with PL-68 Tee
  • PL-68 Housing can be used as an inlet or outlet tee
  • Gasket prevents bypass

Part Number

  • 30130 (PL-68 Filter Only, Quantity 10)
  • 30130-CB (PL-68 Filter for Concrete Baffle)
  • 30130-H (PL-68 Filter with 3" to 4" Housing, Quantity 8)
  • 30130-H-4 (PL-68 Filter with 4" Housing, Quantity 8)
  • 30142-68 (PL-68 Filter Housing for 3" and 4" Pipe)
  • 30142-68-4 (PL-68 Filter Housing for 4" Pipe Only)
  • 30148G (Replacement Gasket)

Similar Products

PL-122 Effluent Filter

The PL-122 was the original Polylok filter. It was the first filter on the market with an automatic shut-off ball installed with every filter. When the filter is removed for regular servicing, the ball will float up and prevent any solids from leaving the tank. Our patented design cannot be duplicated. Ideal for residential waste flows up to 3,000 gallons per day (GPD).

PL-525 Effluent Filter

The PL-525 Effluent Filter is rated for 10,000 GPD (gallons per day) making it one of the largest filters in its class. It has 525 linear feet of 1/16” filtration slots. Like the Polylok PL-122, the Polylok PL-525 has an automatic shut-off ball installed with every filter. When the filter is removed for cleaning, the ball will float up and temporarily shut off the system so solids won’t leave the tank.

PL-625 Effluent Filter

The PL-625 filter is ideal for grease trap applications. The 1/32” filtration has been shown to reduce fats, oils, and grease (FOG) by as much as 60% to 98%! The filter may be used in onsite wastewater systems that require a finer level of TSS removal. Whatever the application, Polylok has the filter for you!

Zabel A1800 ™ Series

Like the PL-68, this filter was designed for residential applications. The cartridge design allows for easy installation and maintenance and comes with our standard baffle (tee). All A1800 Series filters feature a locking tab that securely locks the filter into the tee. With 1/16” filtration, this filter is available in 18” and 22” lengths. The 22” A1800 comes with a built in gas deflector.

Zabel A100, A300, A600™-8 Series

A smaller version of the original Zabel® Disc Dam Filter, the A100/ 300/ 600 - 8 Series is becoming a popular choice for applications where increased effluent quality is desired.

Zabel A100, A300, A600™-12 Series

The original Zabel® Disc Dam Filter was patented in 1959. The 12” series filters have been filtering wastewater longer than any other filter in the wastewater industry. In 2000 Zabel made the best even better by introducing a complete redesign of the original with more great features and finer levels of filtration. In 2006, Polylok, Inc. purchased the Zabel filter line and with the benefit of our in house engineering department, we are continuing to improve the product line.

Best GF10 Filter

The Best Filter is a great addition to the Polylok PL-525 effluent filter family. The GF10 Filter is 10" x 18" and is available in three filtration designs: 1/8", 1/16" and 1/32". The exterior of the GF10 filter is a single-piece case. It has no joints and no glue holding it together which gives it incredible strength. It is made of impact-resistant PVC so it can withstand harsh treatment and it won't break!

Goes Well With

Filter Handle Assembly (New Style)

Polylok’s new handle extension kit makes reaching a deeply installed filter easy and clean without having to grab the filter submerged in effluent.

PL-68 Sanitary Baffles Tees

Baffles tees can be used on either the inlet or outlet of the septic tank. Our baffle tees accept 3'' & 4'' SCHD 40 or SDR 35 pipe. They are easy to install, and accepts most 4'' effluent filters on the market today.

Gas Deflector for PL-68 Tee

Our gas deflector is designed to be used with our PL-68 Tee. It will prevent rising gas bubbles, that carry tiny solid particles, from leaving the outlet pipe and entering the leach field. It just snaps into the bottom of the tee and that’s it.

Adapter Rings

This is the only Adapter Ring on the market that accepts 20" or 24" risers. Our Adapter Ring is ideal for retrofitting existing septic tanks and can be secured with ease. Our Adapter Ring is made of virgin high density polyethylene.

Zabel Versa-Tee™

Versa-Tee accepts SDR35 & SCH40 pipe sizes, simplifying installations and inventories. May be used on both the inlet and outlet of poly and concrete septic tanks. Constructed of high quality PVC plastic.

Gas Deflector for SCHD 40 and SDR 35 Pipe

Our Gas Deflectors can be attached to any piece of pipe making it extremely versatile. Unlike our competition, our Gas Deflectors will not fall off during tank servicing.