Cherne
Full Cherne product line — Test-Ball blocking plugs, Muni-Ball bypass plugs, Gripper mechanical plugs, and Air-Loc air & joint testing equipment. · 138 products
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About Cherne
Full Cherne product line — Test-Ball blocking plugs, Muni-Ball bypass plugs, Gripper mechanical plugs, and Air-Loc air & joint testing equipment. The brand plumbing contractors spec by name. Competitive pricing, fast shipping. Cherne is an Oatey company — if you’re searching for Oatey pipe plugs, this is the line.
Why Contractors Choose Cherne
Cherne has been the standard name in pipe testing and sealing equipment for decades. When a plumbing contractor, municipal crew, or pipeline company needs to isolate, test, or bypass a pipe section, Cherne is what they reach for. We carry the full product line — not a limited selection — so you can get every size and type from a single supplier.
Product Lines
Blocking Plugs (Test-Ball & I-Series)
Pneumatic plugs that create a complete seal for pressure testing, smoke testing, and construction isolation. Single-size and multi-size options from 4” to 24”. The I-Series covers extended ranges, reducing the number of plugs your crew carries.
Bypass Plugs (Muni-Ball)
Seal the pipe while diverting flow through a built-in bypass channel. Essential for sewer repair work where you can’t fully stop flow. Bypass sizes from 3/4” to 3” for residential through municipal trunk lines.
Mechanical Plugs (Gripper & Econ-O-Grip)
No inflation required. Hand-tighten for fast pipe sealing. Gripper plugs rated up to 17 PSI for drain testing. Econ-O-Grip for cost-effective low-pressure blocking.
Air & Joint Testing (Air-Loc)
Joint testers, manhole vacuum testers, manometers, and quick-disconnect conversion kits for sewer acceptance testing. Ask about smoke-testing gear availability — special order.
Pricing & Availability
Cherne products at competitive pricing with fast fulfillment. For contractor pricing on recurring orders, call (866) 514-3684.
Frequently asked questions
Do you carry the full Cherne line?
Yes. We carry Test-Ball, Muni-Ball, Gripper, Econ-O-Grip, Air-Loc, and accessory products. If you don’t see a specific Cherne item, call us — we can source it.
What’s the difference between Test-Ball and Muni-Ball?
Test-Ball plugs create a complete seal (blocking). Muni-Ball plugs seal the pipe but include a bypass channel that diverts flow around the work zone. Use Test-Ball for pressure testing; Muni-Ball for repair work where flow can’t be fully stopped.
Do you offer contractor pricing?
Yes. Call (866) 514-3684 for pricing on recurring or volume orders. We work with plumbing contractors, pipeline companies, and municipal crews nationwide.