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Cast iron blind plug, black bitumen finish, socket type, solid construction

Zoro Select

Zoro Select 222486 Blind Plug, 4" Pipe, Socket, Cast Iron

SKU CH-38J8-RC8G5

A 4-inch cast-iron blind plug with socket connection seals pipe ends at up to 5 psi and 212 °F

  • Solid cast-iron plug blocks 4 in pipe ends
  • Socket connection fits no-hub piping without threads
  • Class 20 rating handles up to 5 psi service pressure
  • Bitumen coating resists corrosion in wet environments
  • Operates from 0 to 212 degrees F for hot-water lines

Zoro Select 4-Inch Cast Iron Blind Plug

This Zoro Select blind plug seals a 4-inch nominal pipe socket in cast iron drainage systems. It fits Class 20 piping and provides a solid, non-threaded closure for maintenance or permanent termination. The component is new and ships directly from the supplier.

Rated for 5 psi maximum operating pressure

The plug withstands continuous service from 0 to 212 degrees Fahrenheit without degradation. Its solid cast iron construction and bitumen coating resist corrosion during sustained exposure to waste fluids. No pressure spikes or thermal cycling beyond the stated range are supported.

Socket fit installs by pushing into a no-hub

The 4 7/16-inch outside diameter matches standard 4-inch no-hub sockets for a friction fit. No thread sealant or gasket is included, so installers must supply compatible sealing materials. Misalignment or debris in the socket prevents a leak-free joint.

How it compares

Measured against everything we stock in Garden Hoses & Pipe Tubing, at today’s prices. Recalculated every night.

Price $22.99
Typical for this category: the median of 973 items is $21.99.

Specifications

Product
Brand nameZORO SELECT

Questions about this item

Will the cast-iron plug run hot or make noise when left in a pressurized line all day?

The solid cast-iron body has no moving parts, so it generates no heat or noise during continuous service.

What pipe or fitting must I already have for this 4-inch socket plug to install?

It fits a 4-inch no-hub socket with a 4 7/16-inch outside diameter, so the matching pipe or coupling must be on hand.

Can I keep my older Class 20 piping when I add this blind plug?

Yes — the plug is rated Class 20 and handles up to 5 psi at temperatures from 0 to 212 °F, matching existing Class 20 systems.

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