Product/Service

Watertight Seals for Corrugated Pipe

Source: NPC, Incorporated
The NPC Corrugated Pipe Adapter makes it easy to get a watertight seal between corrugated pipe and a manhole
The NPC Corrugated Pipe Adapter makes it easy to get a watertight seal between corrugated pipe and a manhole. Designed to fit popular sizes of ADS and Hancor pipe, simply stretch over the pipe to the desired location.

Our Pipe Adapter is designed to be used with our Kor-N-Seal connector to ensure a watertight seal between the corrugated pipe and manhole. Refer to the model numbers in the table below.

Its unique design (patent pending) distributes the force from the pipe clamp on our Kor-N-Seal connector directly against the inside walls of the pipe corrugations, creating a watertight seal.

Pipe Size
I.D. in Inches
Pipe Adapter
Model Number
Recommended Kor-N-Seal
Connector Model Number
8CGA-8
(Hancor or ADS Pipe)
S106-12, S406-12
10CGA-10 (ADS Pipe)
CGA-10H (Hancor Pipe)
S106-16A
12CGA-12
(Hancor or ADS Pipe)
S106-16, S106-20B
15CGA-15
(Hancor or ADS Pipe)
S106-20
18CGA-18 (ADS Pipe)
CGA-18H (Hancor Pipe)
S206-24L
24CGA-24 (ADS Pipe)
CGA-24H (Hancor Pipe)
S206-32A

NPC, Incorporated, Po Box 301, Millford, NH 03055. Tel: 800-626-2180; Fax: 603-673-7271.