Duff Co. Parts Catalogs

Welcome to the Duff Co parts catalogs. We do not offer online ordering at this time, but this collection of PDF catalogs will help you find the part numbers you need to finish any project on your property maintenance repair to-do list.

Once you have identified the parts you need, simply fill out the order form below or use the order form in the catalog and email it to us. We’ll get back to you right away.

Click the images below to view each PDF catalog.

To view our Water Treatment Catalogs, click here.

Valves Catalog – includes sump, utililty, laundry tray, sewage and effluent, chemical transfer, diaphragm, centrifugal, pool, industrial, pressure booster, environmental and well pumps, controls, seals, cable switches, poly pipe, fittings and tanks, well accessories, oil water separators, carbon drums, geotextiles, HDPE, from manufacturers such as Bell & Gossett, Little Giant, Liberty, PTACO, Thrush, Grundfos and more.


Fittings and Pipe Catalog – includes malleable iron pipe fittings in galvanized and black, reducers, steel coupling, standard and long steel nipples and runs, cast iron and cast brass fittings and reducers, flanges and gaskets, pipe and arches, clamps, compression couplings, leak repair plugs, welding and copper and mega press fittings, and much more.


Hangers and Fasteners Catalog – Whether it’s hung, sprung, clamped, supported, guided, rolled, bolted or hooked, we’ve got the material in stock and we can get it out to you today!


Fire Protection Catalog – includes fire department inlet connections; pressure regulating and restricting valves; hose valves; fire sprinkler parts; fire stops, barriers, penetrants, and seals; pipe couplings; hoses, fittings and accessories.


Plumbing Catalog – T&S Brass, Central Brass, Powers Valves, Symmons, Moen, Delta, Peerless and Chicago Faucets — Faucets and parts. Commercial Drains. Sloan Valves, Parts and Optima Faucets, Toto & Zurn. Tubular Traps, Supplies, Sinks, Commercial China, Toilet Repairs, Partitions, Washroom Accessories, Showers and Heads, Water Coolers and Fountains, Emergency Equipment and Garbage Disposers. Lead Reduction.


Heating Catalog – includes replacement tube bundles and coils, water heaters, boilers, garage and shop heaters, thermostats and controls, circulator pumps, dielectric fittings, relief valves, regulators and vents, thermometers, gauges, steam traps, pumps, duct, heat tape, insulation, oil tanks, and more.


Water Regulators, Backflow Preventers and Meters Catalog – includes pressure reducing valves, backflow preventers, flow controls, meters, and shock suppressors.


Pumps Catalog – includes sump, utililty, laundry tray, sewage and effluent, chemical transfer, diaphragm, centrifugal, pool, industrial, pressure booster, environmental and well pumps, controls, seals, cable switches, poly pipe, fittings and tanks, well accessories, oil water separators, carbon drums, geotextiles, HDPE, from manufacturers such as Bell & Gossett, Little Giant, Liberty, PTACO, Thrush, Grundfos and more.


Plastic and Hose Catalog – includes PVC, CPVC, SDR-35, Polyethylene, sewer and drain and corrugated pipe, valves and fittings, lab fixtures and trim, grating, hose, nozzles, tubing, air filters, regulators and lubricators, quick connects, and more.


Cabinets and Multi-Family Housing Supplies – includes blinds, fire protection, wallplates, switchplates and switches, ceiling fans, vanity lighting, kitchen and bathroom cabinets, and more.


Tools Catalog – includes sump, utililty, laundry tray, sewage and effluent, chemical transfer, diaphragm, centrifugal, pool, industrial, pressure booster, environmental and well pumps, controls, seals, cable switches, poly pipe, fittings and tanks, well accessories, oil water separators, carbon drums, geotextiles, HDPE, from manufacturers such as Bell & Gossett, Little Giant, Liberty, PTACO, Thrush, Grundfos and more.


Compounds and Chemicals – includes drain cleaners, surface cleansers, grease removers, septic tank activator, lime solvent, cleaners for ice machines, concrete patch, plumbers putty, soldering paste, form-a-gasket, teflon tape, and much more..


Order Form

  • (*specify location if multi-location account)
  • Date Format: MM slash DD slash YYYY
  • Fill in your product information in the fields below and click the symbol to the right. You may add up to 20 products.
    QuantityPart No.Description 
  • Drop files here or

  • To use our traditional printed order form, click here.