JosamCast Iron Drainage
A complete line of quality cast iron and PVC specification drainage products available in a variety of finishes with a multitude of optional features. Built on Josam's core principles of Quality, Service, and Competitiveness.
Cast Iron Drainage Products
Comprehensive drainage solutions featuring the patented double-drainage flange design (1914), Pre-Fab Base options, and stringent quality control.
Water Closet Carriers
Wall-mounted toilet support systems with single bolt height adjustment, compact design, and square upright construction.
Commercial Restrooms, Healthcare, Schools
Fixture Carriers
Support systems for lavatories, sinks, and wall-mounted fixtures with industry-leading 4¼" height adjustment.
Restrooms, Healthcare, Commercial
Roof Drains
Complete roof drainage solutions with non-puncturing clamp rings, various dome options, and Pre-Fab Base availability.
Commercial Roofing, Industrial
Floor Drains
Specification floor drains featuring the patented double-drainage flange design (1914), still the industry standard.
Commercial, Industrial, Institutional
Floor Sinks
Sanitary floor sinks with coated cast iron body for commercial kitchens and food service applications.
Commercial Kitchens, Food Service
Cleanouts
Access points for drain line maintenance including floor and wall cleanouts with various cover options.
Commercial, Industrial, Maintenance Access
Grease Interceptors
Grease management solutions for commercial kitchens and food service with code-compliant designs.
Restaurants, Commercial Kitchens
Oil/Solids Interceptors
Separation systems for oils, sediment, and solids in industrial applications.
Industrial, Parking Garages, Auto Service
Backwater Valves
Prevention of sewage backflow with swing-check, ball-float, and combined drain types.
Commercial, Residential, Below-Grade
Trench & Channel Drains
Linear cast iron drainage solutions with multiple grate options for various applications.
Commercial Kitchens, Industrial, Mechanical
Hydrants
Wall and yard hydrants for building water access in commercial and industrial settings.
Commercial, Industrial, Exterior
Shock Absorbers
Water hammer arrestors to protect plumbing systems from pressure surges.
Commercial, Industrial, Multi-Family
Traps & Accessories
P-traps, trap primers, Jiffee Joint gaskets, and related accessories for complete drainage systems.
All Drainage Systems
Lite Line
Economy drainage products maintaining Josam quality at accessible price points for budget-conscious projects.
Budget-Conscious Commercial Projects
Where Cast Iron Drainage Is Specified
Related product types
- Trench & channel drains — heavy-duty linear drainage for vehicular and wash-down floors.
- Backwater valves — swing-check and ball-float backflow prevention for below-grade fixtures.
- Drainage grates — cast iron and ductile tops in multiple load ratings.
Common applications
- Restaurants and commercial kitchens — floor sinks and grease interceptors.
- Hospitals and schools — fixture carriers, floor drains, and cleanouts.
- Manufacturing plants — oil/solids interceptors and heavy-duty floor drainage.
Need Help Specifying Cast Iron Drainage?
Our drainage specialists can help select the right Josam cast iron products for your commercial, industrial, or institutional project.