Cherne ® Plug, 8-12 IN. Big-Mouth, W/6 IN. Bypass

The Cherne 8"-12" Big-Mouth Plug with 6" Bypass (part #376-088) is the highest-flow pneumatic bypass plug in the standard Cherne line — a 6" bypass opening on an 8" to 12" pipe plug. For sewer testing applications where maximum flow-through is essential. Natural rubber construction for underground sewer and storm pipe.

Key Features

• 6" bypass — controlled flow-through during testing
• Pneumatic inflation — natural rubber seals round and out-of-round pipe

Technical Specifications

Applications

Municipal sewer air pressure testing, storm drain isolation, large-diameter pipe testing during construction and repair, and compliance testing on trunk mains. Always follow Cherne inflation and back-pressure guidelines.

Questions on sizing or bulk pricing? Call (866) 514-3684 or email us — same-day shipping on in-stock items, tax-exempt purchasing for qualified accounts.