Fernco Proflex 3004-320 Shielded Pipe Coupling Connector — 3" Cast Iron to 2" Cast Iron, Plastic, or Steel Pipe

3004 Series · Proflex Shielded Coupling

Fernco Proflex 3004-320 Shielded Pipe Coupling Connector — 3" Cast Iron to 2" Cast Iron, Plastic, or Steel Pipe

Part # 3004-320

Superior shear force resistance. The Fernco proflex stainless steel shield and clamp design help resist heavy shear forces, ensuring a rigid,...
Durable construction. Made with a .012" thick stainless steel shield and 301 stainless steel clamp bands, proflex couplings provide...
Cast iron to standard pipe connection. The Fernco proflex 3004 series is built to connect cast iron piping to cast iron, plastic, or steel.
Code compliant and easy to install. Complies with ASTM c1460, ASTM c564, and CSA b602.

3004 Series Size: 3" x 2"

Connects Cast Iron to Cast Iron, Plastic and Steel

Drawing (PDF) All documents

Dimensions

Download drawing (PDF)

Length	4.32 in
Width	4.32 in
Height	2.13 in
Weight	0.69 lb

Product details

The Fernco proflex 3004-320 shielded pipe coupling is engineered for dependable above-ground pipe transitions between 3" cast iron to 2" cast iron, plastic or steel pipe. Featuring a flexible neoprene sleeve and a durable stainless steel shield, this coupling delivers a secure, leak-resistant seal that absorbs vibration and resists shear forces. Whether you're performing a repair or adapting between materials, the proflex coupling ensures a code-compliant, professional-grade connection that installs quickly with standard tools. Manufactured in the USA, proflex couplings are trusted by professionals for their quality, reliability, and performance across residential and commercial plumbing applications.

The preferred above ground pipe connector. Fernco proflex couplings are the premier choice for above-ground applications, offering unmatched strength, flexibility, and performance when connecting a wide range of pipe materials

Versatile compatibility. Proflex is a transition coupling that provide seamless, reliable connections across a spectrum of sizes and materials.

Connects 3" cast iron to 2" cast iron, plastic or steel pipe

Specifications

Product
Connection	Mechanical
Fitting type	Reducing Coupling
Flexible	Yes
Material	EPDM Rubber, Stainless Steel
Color	Black, Silver
Standards	ASTM C1460, ASTM C564, CSA B602
Application	Above Ground, DWV

Performance
Max test pressure	4.3 psi
Temperature range	-30°F to 140°F

Drawings and downloads

Documents

Dimensional drawing

3004-320, PDF · 1015.15 KB

Download

Proflex-Sell-Sheet-03-26 PDF · 13.16 MB
Fernco Proflex Salesheet PDF · 14.71 MB
Fernco Proflex Salesheet - French PDF · 13.24 MB
Fernco Proflex Specialty Coupling Installation PDF · 1.33 MB
Proflex Specialty Coupling Installation PDF · 1.33 MB
Installation instructions All products

Compare 3004 Series sizes

3004-320 (this part)

Size
3" x 2"

Pipe materials
Cast Iron to Cast Iron, Plastic and Steel
3004-420

Size
4" x 2"

Pipe materials
Cast Iron to Cast Iron, Plastic and Steel
3004-430

Size
4" x 3"

Pipe materials
Cast Iron to Cast Iron
3004-540

Size
5" x 4"

Pipe materials
Cast Iron to Cast Iron

Part	Size	Pipe materials
3004-320 (this part)	3" x 2"	Cast Iron to Cast Iron, Plastic and Steel
3004-420	4" x 2"	Cast Iron to Cast Iron, Plastic and Steel
3004-430	4" x 3"	Cast Iron to Cast Iron
3004-540	5" x 4"	Cast Iron to Cast Iron