09/02/2026
87 INCHES. BUILT FOR THE JOB.
Shown here is an 87-inch Calder Repair Coupling manufactured by Joints Couplings, connecting large-diameter sliplining pipe.
When standard coupling sizes won't work, Joints Couplings manufactures custom large-diameter couplings for demanding sewer and underground infrastructure applications.
Working on a large-diameter connection, unusual pipe OD, or transition?
Contact Joints Couplings: [email protected], (626) 448-2100, or send message on social media.
Send us the pipe dimensions and application—we'll help determine the right coupling.
What's the largest diameter pipe you've had to connect in the field?