Jackel Sump Dome 4" Pipe Adapter Kit – 3" Threaded to 4" Schedule 40 PVC

Connect standard 4" Schedule 40 PVC radon pipe directly to your Jackel sump dome. The Jackel dome ships with a 3" threaded port — this kit bridges the gap to your 4" radon piping system with a heavy-duty threaded adapter and flexible reducing coupling.

Kit Includes:

• 3" MPT threaded adapter — threads directly into the Jackel sump dome port
• 3" to 4" flexible reducing coupling
• Stainless steel hose clamps (2)

Why Use a Flexible Coupling? Rigid PVC connections transfer stress directly to the sump lid, causing cracks over time. The flexible coupling absorbs vibration and system movement, protecting your sump dome and extending the life of your installation.

Easy Sump Pump Service Access Loosen the clamps and slide the flexible coupling down to quickly disconnect the radon pipe from the dome — no cutting, no glue joints to break. Service the sump pump and reconnect in minutes.

Specifications:

• Inlet: 3" male pipe thread (MPT) — fits Jackel sump dome threaded port
• Outlet: Accepts 4" Schedule 40 PVC (4.500" OD)
• Clamps: Stainless steel
• Material: PVC adapter, flexible PVC coupling