Bushing, Spigot x Slip (Flush Style) PVC Schedule 80 4" x 1-1/4" (837-418)

The 4" x 1-1/4" PVC Schedule 80 Flush Bushing (Spigot x Slip) provides a reliable, pressure-rated solution for reducing pipe diameter within a run of Schedule 80 PVC piping. The spigot end inserts directly into a Schedule 80 socket fitting, while the slip socket end accepts a 1-1/4" pipe or fitting — eliminating the need for an additional coupling and keeping the transition compact and flush with the fitting face.

Manufactured to ASTM D2464 standards and listed under NSF/ANSI 14, this bushing is designed for use in systems where chemical resistance, pressure integrity, and long service life are non-negotiable. The dark gray Schedule 80 PVC compound offers a higher pressure rating and greater wall thickness than Schedule 40, making it well-suited for industrial process lines, chemical handling, and commercial plumbing systems operating under demanding conditions.

Specifications:

Industries & Applications:

• Chemical Processing — Resistant to a broad range of acids, bases, and industrial chemicals; ideal for reducing line size within chemical feed and transfer systems
• Industrial Manufacturing — Used in process piping where higher pressure ratings are required at diameter transitions
• Municipal Water & Wastewater — Suitable for treatment plant piping, pump stations, and distribution infrastructure
• Commercial Plumbing — Applied in mechanical rooms, boiler rooms, and high-pressure domestic water systems
• Irrigation & Agricultural — Used in mainline irrigation systems requiring a reduction from larger supply lines to smaller lateral runs
• Aquaculture & Water Treatment — Chemical resistance makes this bushing effective in recirculating aquaculture systems and water filtration applications