What Polylok does

Polylok is a private, US-based manufacturer of plastic and HDPE (high-density polyethylene) products serving the precast concrete, drainage, and onsite wastewater treatment industries. The company is organized around four product categories — Precast (rebar spacers, chairs, risers, grates, beam bolsters, mesh and stacking chairs), Drainage (catch basins, trench drains, ductile grates, Flow Gate pop-up drains, adapters), Wastewater (effluent filters including the PL-250, PL-625, PL-68, and acquired Zabel A-series disc-dam filters, plus baffles, gas deflectors, and biological treatment products such as Poly-Cleanse and Prep & Clean), and Plumbing Accessories (pipe adapters, Extend & Lok, elbows, downspout adapters). The portfolio is anchored by multiple granted patents (Poly I Pipe Seal, PL-122 Effluent Filter, Zabel Disc Dam Filter) and is certified to NSF/ANSI Standard 46 and Build America, Buy America Act standards as of 2025.

Polylok's core technology is physical product engineering — proprietary disc-dam and slot filtration mechanics, watertight sealing, and injection-molded HDPE components — rather than software or data. The company operates a 140,000 sq ft headquarters and manufacturing facility in Wallingford, Connecticut, a 25,000 sq ft warehouse in Yalesville, CT, and a regional office in County Kildare, Ireland (Polylok Ltd.) for international distribution. Manufacturing is vertically integrated from design through in-house engineering laboratory testing.

Polylok's business model is a product-sale model: it manufactures and sells physical goods through three channels — direct e-commerce (polylok.com and zabelenvironmental.com), an authorized distributor network (including DrainageDirect.com and supply houses), and direct quote-based B2B sales. Pricing is quote-based, not publicly listed, and contracts appear multi-year. Customer segments are horizontally diversified across 12 types spanning precasters, contractors, pumpers, engineers, manufacturer's reps, supply houses, distributors, government, municipalities, golf courses, landscapers, and homeowners. The company is privately held with no disclosed parent, no institutional investor backing, and no public listing. The current President is Pete Gavin, and the company employs 501-1,000 people.

Name

Polylok

Legal name

Polylok Inc.

Website

https://polylok.com

Company type

Private

Founded year

1997

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Polylok manufactures plastic and HDPE precast concrete accessories, drainage products, and onsite wastewater filtration components (including the Zabel disc-dam filter line), selling through distributors, direct e-commerce, and quote-based B2B sales to contractors, precasters, engineers, municipalities, and homeowners across the US and Ireland.

Ownership category

akta.pro rank

Product category

Onsite Wastewater & Drainage Products

NAICS

All Other Plastics Product Manufacturing (326199)

SIC

Miscellaneous Plastics Products (3080)

akta.pro primary industry

Precast Concrete Products (IMADAAAB)

Keywords

• Onsite wastewater products
• Precast concrete accessories
• Drainage products
• Effluent filtration systems
• Plastic injection molding

Headquarters

HQ city

Wallingford

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Operations, Personnel, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Product Sales (Precast, Drainage, Wastewater): Polylok generates revenue through the manufacture and sale of precast concrete accessories, drainage products, and wastewater treatment products including effluent filters, risers, grates, distribution boxes, and related accessories. Products are sold through direct sales, authorized distributors, and e-commerce channels.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels7 records

Core offering

Polylok manufactures and distributes plastic and HDPE-based products for the precast concrete, drainage, and onsite wastewater industries. The product portfolio is organized into three categories: precast accessories (rebar spacers, chairs, bolsters, risers, covers, grates, basins, distribution boxes), drainage products (catch basins, trench drains, flow gates, grates, adapters), and wastewater products (effluent filters, baffles, risers, gas deflectors, bacteria-based treatment solutions, and Zabel-branded filtration). Products are sold direct, through authorized distributors, and via e-commerce to precasters, contractors, engineers, government/municipalities, and homeowners.

Product overview

Polylok is a manufacturer of precast, drainage, and wastewater products serving the construction and onsite wastewater industries. The product portfolio is organized into four main categories: Precast Products (including rebar spacers, concrete accessories, risers, covers, grates, basins, distribution boxes, and safety devices), Drainage Products (encompassing catch basins, trench drains, grates, pumps, and adapters), Wastewater Products (including effluent filters like the PL-250, PL-625, PL-68, Zabel A-series, and related accessories like baffles, risers, and treatment products), and Plumbing Accessories (pipe adapters, elbows, downspout adapters, and the Extend & Lok system). The company also holds acquired brands including Zabel (effluent filter technology acquired in 2006) and Best Technology filter assets (acquired in 2007). Products serve residential, commercial, and municipal applications in the septic, drainage, and wastewater treatment sectors.

Differentiator

Problem solved

Functional benefit

Brands

• Zabel: Zabel is a retained brand acquired by Polylok, known for disc dam filter technology and onsite wastewater filtration products including the A100, A300, A600, and A1800 series filters.

Products and services

• PL-250 Effluent Filter Effluent filter for septic tank applications, designed to prevent solids from entering drain fields. Sold to contractors, distributors, and homeowners through Polylok's direct and channel sales.
• 30" Heavy Duty Cover for Corrugated Pipe Heavy duty cover designed for corrugated pipe applications in drainage systems. For contractors, distributors, and drainage system installations.
• Lid-Lok Safety Device Safety device for secure lid installation on septic tanks. Targets contractors, installers, and homeowners needing OSHA/safety-conscious tank lid solutions.
• Mesh Chairs Spacer chairs for rebar support in precast concrete applications. Sold to precast concrete manufacturers and contractors.
• 4" Atrium Grate Atrium grate for 4-inch drainage applications. For contractors, distributors, and residential/commercial drainage installations.
• Beam Bolster Uppers Concrete bolsters with runners for structural support in precast applications. Sold to precasters and concrete construction contractors.
• Ductile Grates for Polylok Heavy Duty Channel & Trench Drain Heavy-duty ductile iron grates for Polylok trench drain systems. For commercial/industrial drainage contractors and distributors.
• 12" x 12" Atrium Grate Larger atrium grate for 12-inch square drainage applications. For contractors, distributors, and commercial drainage installations.
• 20" x 2" Riser 20-inch diameter riser with 2-inch height for tank riser applications. For septic installers, contractors, and homeowners.
• 20" x 3" Riser / Riser Safety Pan 20-inch riser with integrated safety pan for low-profile septic tank applications. For installers, contractors, and homeowners needing shallow-profile riser solutions.
• X-Chairs Concrete rebar chairs with X-shaped design for precast applications. For precast concrete manufacturers and contractors.
• 24" x 2" Riser 24-inch diameter riser with 2-inch height for tank riser applications. For septic installers, contractors, and homeowners.
• Prep & Clean Natural bacteria product designed to clean effluent filters when a hose is not available. Safe for residential and commercial septic applications. For homeowners, pumpers, and service providers.
• Polylok Pro-Grade Adhesive (10.2 fl oz) Industrial-grade adhesive formulated for multiple surfaces including PVC, concrete, metal, and plastics, with a non-sag formula for vertical applications. For contractors, installers, and distributors.
• Poly-Cleanse Commercial-strength bacteria strain for maintaining septic systems and reducing pipe buildup. A chemical-free organic solution. For homeowners, commercial property managers, and septic service providers.
• 24" IPEX to 24" IPEX Adapter Adapter ring for retrofitting existing septic tanks with 24-inch IPEX pipe connections, made of virgin high-density polyethylene. For contractors and installers performing tank retrofits.
• 6" Flow Gate Flow gate designed for 6-inch drain and sewer fittings that opens with hydrostatic pressure to discharge water and closes during dry weather to block debris and rodents. For drainage contractors, distributors, and engineers.
• 4" Flow Gate Flow gate for 4-inch drain fittings featuring a stainless steel spring and fade-resistant construction that opens with hydrostatic pressure to discharge water and blocks debris and rodents when dry. For residential and commercial drainage contractors.
• Zabel A1800 Series Effluent Filter Residential effluent filter with cartridge design featuring 1/16-inch filtration, available in 18" and 22" lengths, with an optional built-in gas deflector. Targets residential septic system installers and homeowners; cartridge design simplifies installation and maintenance.
• PL-625 Effluent Filter High-capacity effluent filter rated for 8,000 GPD with 1/32-inch filtration (625 linear feet), designed for grease trap applications, reducing fats, oils, and grease (FOG) by 60-98%. For commercial grease trap and high-flow wastewater applications.
• PL-68 Sanitary Baffle Tees Baffle tee for septic tank inlet or outlet that accepts 3" and 4" SCHD 40 or SDR 35 pipe and most 4-inch effluent filters. For septic tank installers and contractors.
• Zabel A100, A300, A600-12 Series Effluent Filters Original Zabel disc dam filter series with filtration levels A100 (1/16"), A300 (1/32"), and A600 (1/64"), available in 20", 28", and 36" lengths with flow rates of 5,700-10,000 GPD. Certified to NSF/ANSI Standard 46. For commercial and higher-capacity residential wastewater treatment.
• Zabel A100, A300, A600-8 Series Effluent Filters Smaller version of the Zabel disc dam filter series for residential applications, with 18-inch length and flow rates of 2,500-5,100 GPD. Filtration levels A100 (1/16"), A300 (1/32"), and A600 (1/64"). Certified to NSF/ANSI Standard 46. For residential septic system installers and homeowners.

Quantifiable outcome

• Zabel A100 filter decreases TSS by 50-90% and CBOD5 by 20-40%
• +2 more outcomes

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

One partnership is on record.

• Zabel Industries International Ltd.coreOEM/ Whitelabel/ Licensing PartnerOn March 14, 2006, Polylok acquired the key assets of Zabel Industries International Ltd., the most recognized and trusted name in onsite wastewater filtration. This acquisition significantly expanded Polylok's product portfolio and brought established filtration technology and brand equity.

Scale indicators2 records

Recent moves12 records

Expansion highlights5 records

Emerging players

• Jet Inc. US manufacturer of aerobic wastewater treatment systems and related components. Smaller niche player overlapping with Polylok's onsite wastewater customer base of installers and engineers.
• Eljen Corporation: Manufacturer of decentralized wastewater treatment systems including proprietary Geotextile Sand Filter modules. Competes with Polylok's wastewater filtration products in the residential onsite treatment segment.

Regional players

• Pipelife: European plastic pipe and fittings manufacturer with strong presence across EU markets. Relevant regional peer given Polylok's Ireland footprint and ambitions to expand in European drainage and wastewater categories.

Direct peers

• Infiltrator Water Technologies: Largest US manufacturer of plastic septic tanks, chamber systems, and stormwater chambers. Directly competes with Polylok's wastewater/septic product line for the same precaster and contractor customer base.
• NDS (NDS, Inc.): Manufacturer of drainage and stormwater management products including catch basins, grates, and channel drains. Directly overlaps Polylok's drainage product category and shares the contractor/distributor channel.
• Orenco Systems: Manufacturer of decentralized wastewater treatment systems including effluent filters and fiberglass tanks. Competes head-to-head with Polylok's effluent filtration line for engineers, municipalities, and installers in the onsite wastewater space.

Broad incumbents

• IPEX (Aliaxis): North American plastic piping and fittings manufacturer (part of Aliaxis). Comparable as a manufacturer of plastic pipe fittings, adapters, and drainage components that overlap with Polylok's plumbing accessory and adapter products.
• Contech Engineered Solutions: Broad infrastructure solutions provider offering stormwater, drainage, and wastewater products. Overlaps Polylok's drainage and wastewater categories, particularly for municipal and commercial specification-driven projects.
• Advanced Drainage Systems (ADS): Public, diversified leader in water management products including HDPE drainage pipe, septic tanks, and stormwater chambers. Identified alongside Polylok as a key player in the plastic septic tank market and overlaps significantly on drainage and wastewater categories.
• Oldcastle Infrastructure (CRH): Large subsidiary of CRH supplying concrete and plastic infrastructure products including drainage, stormwater, and utility structures. Overlaps Polylok in drainage and precast-adjacent categories at scale.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/Polylok
• Facebookfacebook.com/Polylok.Inc
• LinkedInlinkedin.com/company/polylok-inc-
• Pinterestpinterest.com/polylok

Compliance12 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles1 record

Subsidiaries2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Polylok