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QS-4 QwikSeal Lateral Connection
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QwikSeal · QwikSeal Lateral Connection
Fernco QwikSeal QS-4 – 4" SDR Lateral Connector, Water-Tight Compression Seal for 8" & Larger Sewer Pipe
Part # QS-4
- Water-tight performance. Delivers a compression seal up to 10 PSI and accommodates up to 7° of deflection—ideal for manholes and sewer main...
- Universal compatibility. Compatible with concrete, clay, PVC, and corrugated pipe—minimizing inventory while maximizing jobsite flexibility.
- Color-coded for easy identification. Color-coded design simplifies product selection—grey for sch.
- Made in the USA, built for the field. Proudly manufactured in the USA and engineered to perform in demanding underground applications with consistent,...
Dimensions
| Length | 5.67 in |
| Width | 5.67 in |
| Height | 3.54 in |
| Weight | 1.32 lb |
Product details
The QS-4 qwikseal is designed for 4" sdr lateral connections into sewer mains, manholes, and structures. Compatible with 8" diameter or larger pipe—including concrete, clay, solid wall plastic, and corrugated systems—it provides a secure, water-tight compression seal while allowing for field deflection and quick installation.
Specs and codes. Meets ASTM c923 standards for resilient connectors and is designed for water-tight performance up to 10 PSI with up to 7° of deflection in concrete manhole applications.
Specifications
| Connection | Gasket |
| Flexible | Yes |
| Material | Elastomeric PVC, Stainless Steel |
| Color | Green |
| Standards | ASTM C923 |
| Application | Below Ground, DWV |
| Max test pressure | 10 psi |
| Temperature range | -30°F to 140°F |
Drawings and downloads
Documents
Dimensional drawing
QS-4, PDF · 113.21 KB
Also for below ground
HULK universal coupling
One coupling per size for clay, cast iron, plastic, steel, ductile iron and concrete. Stainless steel rods are built into the body for high shear strength.
See HULK
Made in the USA
Made for pros by pros
The QS-4 is made in the USA. Fernco has built flexible couplings in Davison, Michigan since 1964, by people who take the work as seriously as you do.
Meet the team
Got questions about the QS-4?
Send us a message and the right team will reply, usually within one business day. Or call us, Monday to Friday, 8:00 am to 5:00 pm ET.