3 inch PolyPro Slotted Countersunk Cleanout Flush Plug with Brass Insert

3 inch Slotted Cleanout Flush Plug with Brass Insert – Threaded Access Fitting for DWV Systems

The 3-inch Slotted Cleanout Flush Plug with Brass Insert is a threaded closure component used in PVC or ABS Schedule 40/80 cleanout assemblies. Designed to provide sealed, removable access to drain, waste, and vent (DWV) piping systems, the plug is manufactured with a slotted top for tool engagement and a threaded brass insert to maintain structural integrity and long-term thread engagement.

This plug allows for convenient access to the interior of waste lines for maintenance, snaking, and inspection procedures. The brass insert enhances durability in high-use or high-moisture environments and resists stripping during repeated removal and installation. Suitable for both horizontal and vertical cleanout installations where a low-profile closure is preferred.

Product Features

• ✅ Nominal Size: 3 inch (compatible with Schedule 40 cleanout fittings)
• ✅ Construction: High-impact plastic body with corrosion-resistant brass insert
• ✅ Thread Type: Male NPT threads, machined for precise fit within female cleanout tees or hubs
• ✅ Access Feature: Slotted head for installation/removal with standard screwdriver or cleanout key
• ✅ Seal Capability: Threaded connection supports watertight and gastight closure when installed with PTFE tape or approved sealant

Applicable Standards

• ASTM D2665 (PVC DWV systems)
• ASTM D2661 (ABS DWV systems)
• Conforms to IPC and UPC cleanout access and spacing requirements

Installation Guidance

Ensure threads on both the plug and mating fitting are clean and undamaged. Apply PTFE tape or approved thread sealant prior to insertion to ensure a leak-resistant seal. Avoid over-torquing to prevent thread deformation or damage to brass insert. Install flush with the finish wall or floor surface as required by code for accessibility and safety.

Common Use Cases

Used in cleanout branches of residential and commercial DWV systems, including floor-level, wall-access, and vertical stack locations. Provides serviceability for jetting, rodding, or camera inspection operations. Ideal for installations requiring concealed or low-profile access points in finished areas.

Material Consideration

Brass inserts are specified in cleanout fittings where repeated access or high-corrosion potential exists. The combination of plastic and metal allows for reliable torque resistance and extended service life in high-moisture or intermittently wet environments.