The Cherne 18" Aluminum T-Handle Gripper (part #272-888) is the largest mechanical T-Handle Gripper available — a 30 lb aluminum plug for full shutoff on 18" concrete and clay sewer pipe. Rated for 8.7 PSI / 20 ft. head pressure. Fits 18" concrete and clay pipe only (usage range 17.7"–18.3" ID). Chemical-resistant neoprene O-ring and zinc-plated steel T-handle provide reliable sealing in large-bore underground pipe.

Key Features

Full blockage — no bypass — complete pipe shutoff for isolation and testing
T-handle mechanical expansion — high-torque sealing for concrete, clay, and SDR pipe
8.7 PSI / 20 ft. head pressure — rated for sewer air pressure tests
Chemical-resistant neoprene O-ring — handles sewer gas and chemical exposure
Heavy-duty aluminum body — corrosion-resistant, lighter than cast iron

Technical Specifications

Cherne Part Number	272-888
Nominal Pipe Size	18"
Usage Range (Pipe ID)	17.7–18.3"
Bypass	None (full blockage)
Max Back Pressure	8.7 PSI
Max Head Pressure	20 ft.
Body Material	Heavy-duty aluminum
Seal	Chemical-resistant neoprene O-ring
Handle	Zinc-plated steel T-handle
Body Length	9.7"
Weight	30 lbs
Pipe Compatibility	Concrete, clay

Applications

Full shutoff on 18" concrete and clay trunk sewer lines, complete isolation for major pipe repairs, and construction blocking. At 30 lbs, this is a two-person plug. For bypass capability, use part #272-998. For larger pipe or higher pressures, transition to the Cherne I-Series pneumatic line.

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.

Cherne® 18" Aluminio Gripper® Plug (Non By-Pass)*