Guardian Environmental Rectangular Clarifiers
Guardian Environmental Products is a premier manufacturer of rectangular clarifier chains and flights for the water and wastewater market. They offer a broad range of rectangular clarifier systems and components including metallic chain and non-metallic chain with fiberglass flights.

Guardian’s corrosion-resistant plastic chain and components reduce chain weight by 75% which in turn reduces power
Guardian Environmental Rectangular Clarifier Plastic Non-Metallic Chain Requirements. Lightweight, non-metallic sprockets cut installation costs and simplify maintenance. Sprockets are available in a variety of configurations with chain-saver rims for extended life.
Guardian’s range of equipment is the broadest in the industry and includes:
- Complete rectangular clarifier systems
- Chain – non-metallic, stainless steel, cast iron
- Flights – fiberglass, laminated wood & aluminum
- Sprockets – polyurethane, nylon, cast iron
- Wear shoes and wear strips
- Wall mount bearings – polyurethane or cast iron housings
- Drives and drive components
- Scum troughs
- Dissolved air floatation (DAF) components
- Control panels with programmable logic controllers for flight position and monitoring, chain alignment, constant torque control, suspended solids overflow
Guardian also has a broad history of retrofitting parts for all major rectangular clarifier designs and manufacturers.

Guardian has grown to become a highly recognized supplier of rectangular clarifier equipment across the United States. They maintain the broadest range of products and material options in the industry.
Guardian chain & flight systems provide maximum sludge concentrations and floating solids removal. The system includes lightweight components, which makes installation easy and simplifies maintenance. Flights mounted on two parallel strands of metallic or non-metallic chains scrape the settled solids along the tank floor to sludge hoppers. On the return run, the flights can skim the surface and concentrate the floating material at a scum removal device.
Contact Envirep to discuss your rectangular clarifier upgrade project. We work together directly with treatment plant personnel and consulting engineers to apply the best equipment for their needs.
by Mike Gillespie, P.E., President at Envirep
For more information about Guardian Environmental Products, CLICK HERE.
For a complete list of our products, CLICK HERE to view our manufacturer’s line card.
Envirep is a manufacturer’s representative for manufacturers of equipment used to pump, treat, and dispose of wastewater and biosolids. We also represent manufacturers of equipment used to pump, treat, distribute, and store drinking (potable) water. Envirep serves the municipal and industrial water and wastewater market in Pennsylvania, New Jersey, Maryland, Delaware, the District of Columbia, and Virginia.