Cast Iron Drains

The Zurn Z100 roof drain features a 15-inch diameter Dura-coated cast iron body for dependable rooftop drainage. It includes a combination membrane flashing clamp and gravel guard with a low silhouette cast iron dome, and is offered in multiple pipe sizes and outlet connections. Key Features 15-inch diameter Dura-coated cast iron body Combination membrane flashing clamp and gravel guard Low silhouette 4-1/2 inch cast iron dome Available in 2, 3, 4, 5, 6, and 8 inch pipe sizes Outlet options...

The Zurn ZC121 roof drain is built with a Dura-coated cast iron body designed for rooftop drainage. It includes a combination membrane flashing clamp and gravel guard, and accommodates multiple outlet types and dome variants for flexible installation. Key Features 12-inch diameter Dura-coated cast iron body Combination membrane flashing clamp and gravel guard Low silhouette dome options (cast iron or poly) Available in multiple outlet types Supports accessory options like underdeck clamps and...

The Marathon C1-3080 is a 10-inch cast iron strainer designed to provide superior protection for roof drains. Its heavy-duty dome construction prevents debris from blocking drainage while allowing efficient water flow. With accurate dimensions of 9-5/8″ outside diameter and 4-1/2″ height, this cast iron strainer is built for strength, long service life, and resistance to corrosion in demanding environments. Key Features: 10″ cast iron dome strainer Dimensions: 9-5/8″ OD × 4-1/2″ H Heavy-duty...

The Zurn Z100 roof drain features a 15-inch diameter Dura-coated cast iron body paired with a poly dome for rooftop drainage. It includes a combination membrane flashing clamp and gravel guard, with availability in multiple pipe sizes and outlet connections. Key Features 15-inch diameter Dura-coated cast iron body Combination membrane flashing clamp and gravel guard Poly dome for rooftop drainage Available in 2, 3, 4, 5, 6, and 8 inch pipe sizes Outlet options include No-Hub, Inside Caulk, and...

The Marathon C1-3132 is a 12-inch cast iron roof drain strainer engineered for maximum durability and longevity. Its dome design helps prevent debris from clogging drains while maintaining water flow. Constructed from heavy-duty cast iron, it measures 12-1/4″ outside diameter and 7″ in height, making it an excellent choice for large roof drain systems where strength and corrosion resistance are required. Key Features: 12″ cast iron dome strainer Heavy-duty construction for long service life...

The Marathon Cast Iron Roof Drain Kit, also known as the Cast Pak, is built from heavy-duty cast iron to provide long-lasting durability and watertight performance. Each kit includes a cast iron drain body, clamp ring, and strainer. Available in 3″, 4″, 6″, and 8″ outlet sizes, the Cast Pak is designed for reroof and retrofit applications where strength and reliability are essential. Key Features: Available in 3″, 4″, 6″, and 8″ outlet sizes Rugged cast iron construction for maximum durability...

The Marathon BS-1300CI Cast Iron Retrofit Ring & Dome provides a rugged solution for retrofitting existing roof drains. Built from heavy-duty cast iron, it delivers superior strength and long-term performance. This retrofit assembly is designed to fit 3-bolt or 4-bolt drain patterns ranging from 6-1/2″ to 11-3/4″, making it versatile for multiple roof drain installations. Key Features: Cast iron retrofit dome with ring assembly Compatible with 3- or 4-bolt drain patterns Fits bolt patterns...

The units assembled together provide a roof drainage system with an extension range of 3/4" to 8" to accommodate for specified insulation heights provided by the roofer. Slots provided around the base of the sump pan permit the installer to secure this system to the top of the deck. The R1200-JD-STR is professionally designed for new and replacement installations.

The Portals Plus Cast Iron Plus Pack Roof Drain with Poly Dome is designed for both new and retrofit roof drainage applications. It features a heavy cast iron drain body, a molded UV-stabilized polyethylene (poly) dome strainer, cast-aluminum epoxy-coated gravel guard and clamping ring, a cast-aluminum under-deck clamp, and a flexible EPDM expansion coupling with stainless steel clamps. This kit is engineered to provide reliable performance in single-ply and built-up roof systems. Key...

The WP3000-DD-42 dome is a cast-iron replacement dome designed for Wade 3000-series roof drains. It protects the drain inlet from roof debris, gravel, and ice while allowing efficient water flow. The dome is built for heavy-duty commercial and industrial rooftops and serves as the correct OEM replacement for 3000-series drains.

The Portals Plus Cast Iron Plus Pack Roof Drain with Aluminum Dome is a comprehensive kit built for both new installations and retrofit (re-roof) projects. Each unit features a cast iron drain body for structural durability, a cast-aluminum dome strainer for high resistance to wear and weather, a cast-aluminum under-deck clamp, and a flexible EPDM expansion coupling with stainless steel hardware. The kit is designed for single-ply or built-up roof drainage systems. Key features: Cast iron...

The WP3000-42-DOME is a heavy-duty cast-iron dome designed for Wade 3000 Series roof drains. This tall-cage style dome provides dependable debris protection while allowing strong water flow across commercial and industrial flat roof systems. Its reinforced vertical bar design delivers long-term performance in demanding rooftop environments, making it an ideal replacement for damaged or worn domes on existing Wade 3000 installations.

The WP3000-DD-FRG is a replacement dome and flashing assembly designed for Wade 3000 Series roof drains. This component provides debris protection at the drain inlet while the flashing ring helps create a proper seal between the drain body and the roofing surface. It is built for commercial and industrial flat roof systems and serves as a direct-fit replacement for worn or damaged Wade 3000 Series dome and flashing components, helping maintain reliable rooftop drainage performance.

The WP3012-42-DOME is the replacement cast-iron dome designed for the Wade 3012 roof drain. It provides a durable protective cover that helps prevent debris, gravel, and roofing material from entering the drain body while maintaining efficient rooftop water flow. Built from heavy-duty cast iron, this dome is engineered for long service life in commercial and industrial roofing environments. It is the correct OEM replacement for the Wade 3012 drain series.

Oatey� ABS Roof Drains offer superior rainwater drainage while resisting debris and material buildup. Available in a variety of sizes, these roof drains feature a black cast iron or UV-stable ABS dome with a free-flow area that provides more than 200 square inches of protection. Five anchor positions on the drain base ensure secure installation, and the gravel guard collar easily clamps to the drain base with a twist-and-lock feature. Oatey products have earned the trust of plumbing...

The WP3000-D2 is the external water dam and overflow attachment designed for Wade 3000 Series roof drains. This component provides an elevated overflow barrier that helps control water levels during heavy rainfall or drainage backup. It attaches directly to the drain body and increases the drain’s ability to manage rooftop water by creating an additional overflow path. Built for commercial and industrial flat roof systems, this part enhances drainage performance and helps protect roof surfaces...

The 317-WP3000-FRG is a replacement flashing ring designed for Wade 3000 Series roof drains. This component forms a secure connection point between the drain body and the roofing membrane, helping maintain a watertight seal and proper drainage performance. It is built for commercial and industrial flat roof applications and serves as a direct-fit OEM replacement for worn or damaged flashing rings used with Wade 3000 Series drains.