Westlake Pipe & Fittings | 429040 | 4" Slip x Slip Coupling
The Westlake Pipe & Fittings 429040 is a 4-inch slip x slip coupling designed for joining compatible PVC pipe sections. It is suitable for plumbing installations, repairs, and replacement applications where a slip connection is required.
This fitting is commonly used when extending or repairing plumbing lines and replacing a damaged or worn coupling.
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Key Features
⢠4" slip x slip coupling
⢠Designed for joining compatible PVC pipe
⢠Suitable for plumbing repairs and installations
⢠Slip connections on both ends
⢠Durable PVC fitting construction
⢠Ideal for replacement or new installations
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Product Overview
The Westlake Pipe & Fittings 429040 slip x slip coupling connects two compatible 4-inch PVC pipes using slip-style connections. It is intended for plumbing systems requiring a straight pipe connection.
This fitting is commonly installed during new plumbing projects or when replacing a damaged coupling. Proper sizing helps ensure compatibility with the existing piping system.

Description
The Westlake Pipe & Fittings 429040 is a 4-inch slip x slip coupling designed for joining compatible PVC pipe sections. It is suitable for plumbing installations, repairs, and replacement applications where a slip connection is required.
This fitting is commonly used when extending or repairing plumbing lines and replacing a damaged or worn coupling.
āāāāāāāāāāāāāāāāāā
Key Features
⢠4" slip x slip coupling
⢠Designed for joining compatible PVC pipe
⢠Suitable for plumbing repairs and installations
⢠Slip connections on both ends
⢠Durable PVC fitting construction
⢠Ideal for replacement or new installations
āāāāāāāāāāāāāāāāāā
Product Overview
The Westlake Pipe & Fittings 429040 slip x slip coupling connects two compatible 4-inch PVC pipes using slip-style connections. It is intended for plumbing systems requiring a straight pipe connection.
This fitting is commonly installed during new plumbing projects or when replacing a damaged coupling. Proper sizing helps ensure compatibility with the existing piping system.






















