AquaSpring™ AWWA C900 Certa-Lok® RJIB PVC Pipe

Westlake Pipe & Fittings’ AquaSpring™ AWWA C900 Certa-Lok® RJIB PVC Pipe is a patented, segmented Restrained Joint Integral Bell (RJIB) C900 pipe system that utilizes a corrosion-proof spline aligned with precision machined grooves to create a bi-directionally restrained joint that can be assembled in minutes. 

  • Designed for trenchless applications with robust tensile strength for pulling multiple segments underground
  • Helps decrease jobsite footprint and minimize community disruption with a reduced need for job site staging area and traffic control
  • Certa-Lok® provides bi-directional strength that is quick and easy to assemble in any weather conditions
  • Quick and easy assembly without interrupting the pulling process
  • Utilizes Fluid-Tite® gaskets (6" - 24") with superior sealing surface for a leak-free joint and greater deflection capability

What Is Restrained Joint PVC Pipe?

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Restrained joint PVC pipe is designed with joints that resist separation under pressure without requiring external thrust blocks. This design provides added security in high-pressure systems, while maintaining the lightweight and corrosion-resistant benefits of PVC.

What Makes Certa-Lok® Different?

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  • Spline-locked, gasket-sealed system ensures a reliable, bi-directionally restrained joint.
  • Quick assembly without solvents, cements, or adhesives—even in challenging weather conditions.
  • Superior sealing with Fluid-Tite® gaskets (6"–24"), delivering leak-free performance and deflection capability.
  • Strong tensile capacity, enabling long pulls for trenchless applications with fewer disruptions.
  • Lightweight and corrosion-resistant, reducing installation labor and extending service life.
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Brochure

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Municipal Overview Brochure
Municipal
Brochure
Pressurized Potable Water Systems
Specialty Municipal Systems
Sewer Force Main Systems
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Municipal Overview Brochure

Technical Product Specification

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AquaSpring™ C900 Certa-Lok® RJIB with Fluid-Tite® Gasket PVC Pressure Pipe
Municipal
Technical Product Specification
Pressurized Potable Water Systems
Sewer Force Main Systems
Gravity Sewer & Drain Systems
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AquaSpring™ C900 Certa-Lok® RJIB with Fluid-Tite® Gasket PVC Pressure Pipe

Certa-Lok® Field Installation Tools
Municipal
Technical Product Specification
Pressurized Potable Water Systems
Sewer Force Main Systems
Gravity Sewer & Drain Systems
Electrical Systems
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Certa-Lok® Field Installation Tools

Installation Guide

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Certa-Lok® RJIB Installation Guide
Municipal
Installation Guide
Pressurized Potable Water Systems
Sewer Force Main Systems
Gravity Sewer & Drain Systems
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Certa-Lok® RJIB Installation Guide

Price List

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Municipal Price Lists
Municipal
Price List
Pressurized Potable Water Systems
Gravity Sewer Systems
Specialty Municipal Systems
Sewer Force Main Systems
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Municipal Products Price Lists - June 16, 2025 (PDF)

Video

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Municipal
Video
Pressurized Potable Water Systems
Gravity Sewer Systems
Well Casing Systems
Sewer Force Main Systems
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Certa-Lok® Assembly Time

Municipal
Video
Specialty Municipal Systems

8 inch RJIB Pipe Burst

Municipal
Video
Pressurized Potable Water Systems
Specialty Municipal Systems
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Certa-Lok® Restrained Joint Integral Bell (RJIB) PVC Pipe System

Calculators

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Certification Letter

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Nominal Sizes
6", 8", 10", 12", 16", 18", 20", 24"
Gasket Options
SBR, EPDM, NBR
Diameter Standard
CIOD
Class
DR 14, DR 18, DR 25
Pressure Rating
165 psi, 235 psi, 305 psi
Product Options
Solid Wall
Certifications
FM 1612, NSF 14, NSF 61, UL 1285, CSA B137.3
Part # Nom Size Description Color Class Gasket Type Length Resources
A31806020000B040
PC1806020CAP
06" C900 DR18 06IN X 20F - DR18 - 20'
A31810020000B040
PC1810020CAP
10" C900 DR18 10IN X 20F - DR18 - 20'
A51816020000G02S
PC1816020RJIBGN
16" C900 DR18 16IN X 20F - DR18 - 20'
A51816020000B040
PC1816020RJIBEPDM
16" C900 DR18 16IN X 20F - DR18 - 20'
A51818020000B040
PC1818020RJIBEPDM
18" C900 DR18 18IN X 20F - DR18 - 20'
A31812020000B040
PC1812020CAP
12" C900 DR18 12IN X 20F - DR18 - 20'
A31808020000B040
PC1808020CAP
08" C900 DR18 08IN X 20F - DR18 - 20'
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Why Choose Westlake Pipe & Fittings

Westlake Pipe & Fittings is a trusted PVC pipe manufacturer with decades of experience serving municipal, industrial, and infrastructure markets. Our AquaSpring® restrained joint pipe system delivers performance, reliability, and sustainability, backed by industry-leading technical support and nationwide distribution.

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