4 tank types from Polylok.
Distribution Box
The PL-D-Box distributes effluent evenly from the septic tank to multiple drainfield lines. It is made of heavy-duty polyethylene and has adjustable speed levelers that let you fine-tune flow to each line. Getting even distribution is critical for drainfield longevity, and a good D-box makes that straightforward.
$80 - $130
Riser
Polylok's riser kit comes with everything you need: riser sections, adapter ring, lid, and butyl sealant. The adapter ring fits most concrete tank openings and creates a solid base. The lid is child-resistant and has a green color so it blends into lawns. A complete kit saves time over buying components individually.
$80 - $140 per complete kit
Riser
When a riser is in a location where vehicles might cross it, you need a traffic-rated lid. Polylok's heavy-duty lid handles vehicle loads and bolts down securely. It is not something every install needs, but for driveways, farm lanes, or commercial sites it is the right call. Green color for lawn areas, grey available too.
$50 - $90 per lid
Filter
The PL-68 is a cartridge-style effluent filter with a high surface area that handles typical residential flow without restriction. The filter cartridge pulls out from the top for cleaning, which is easier than some designs that make you fight to get them out. It also has a built-in alarm float option for high-water alerts.
$45 - $70