Our Plumbing and Water
Treatment Products
Everything to Control the Flow — From Source to Installation
Whether you are looking for pumping solutions for drinking water or wastewater, water treatment systems, or plumbing accessories for residential, commercial, industrial, or municipal projects, DUP has exactly what you need.
Our lineup covers the essentials… as well as all peripheral products that guarantee a reliable, durable, and high-performance installation. In short, everything required to make your projects flow seamlessly.
Water Treatment Systems
Comprehensive solutions to improve water quality, optimize filtration, and meet the strictest requirements — from residential to commercial applications.
- Custom-assembled water softeners and filters
- Ultraviolet systems
- Dosing pumps for chemical injection
- NSF/WQA Gold Seal certified resinsand filter media
- Residential and commercial reverse osmosis systems
- Cartridges and housings
- Cleanable filters
- Fiberglass storage tanks
- UV replacement lamps (multiple brands)
- Brine tanks
- Solenoid valves (brass, PVC, or stainless steel)
- Test kits and reagents
- Repair and maintenance parts for softener control valves
- Cleaning products… and much more
Pumping Systems
To manage the flow, pressure, and transport of water — whether drinking water, wastewater, or drainage — with reliable equipment built for field performance.
- Submersible pumps for drinking water
- Centrifugal and jet pumps
- Effluent and sewage pumps (wastewater)
- Circulation pumps for heating systems
- Pumps for fountains and water gardens
- 12, 24, and 120 VAC diaphragm pumps (for RVs or cottages)
- Pumping packages for drainage or wastewater
- Variable speed controllers (drives)
- Booster pumps
- Etc.
Plumbing Accessories
All the fittings, components, and installation essentials to ensure a solid, leak-proof, and long-lasting setup — for any type of project.
- Pressure tanks (fiberglass, metal, or stainless steel)
- PEX fittings (standard and push-fit)
- Threaded and insert fittings (brass, stainless stell, PVC, galvanized steel, nylon)
- TWU electical wires
- Quick-connect fittings (camlock)
- Suction and discharge hoses
- PEX, polyethylene (Carlon®), SCH40, and SCH80 PVC pipes
- Self-regulating heating cables and connectors
- Foot valves and check valves
- Pressure regulators (brass and stainless steel)
- Above-ground polyethylene tanks for water storage
- Simplex and duplex control panels for pumping systems
- Installation accessories (collets, slides, torsion dampers, electrical tape, Teflon, ropes, pressure gauges, well covers, seals, pressure switches, etc.)
- And much more…