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White Lasco 435-040 4-inch Schedule 40 PVC female adapter showing slip socket on one end and 4-inch FPT threads on the other, clear profile view.

Lasco 435-040 4" Schedule 40 PVC Female Adapter, Slip x FPT

Brand: PVC
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$15.47
$11.60
SKU 435040
In Stock (20)

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The Lasco 435-040 is a 4" Schedule 40 PVC female adapter designed to join a 4-inch slip (socket) PVC pipe to a 4-inch female pipe thread (FPT). Built from Type-1 PVC, this adapter provides corrosion resistance and long service life for potable water, irrigation, pool, and general plumbing systems.

  • Size & connections: 4" nominal — Slip (solvent-weld) x 4" Female Pipe Thread (FPT) for reliable transitions between plain-ended pipe and threaded components.
  • Material & rating: Type‑1 PVC, Schedule 40/STD construction offers consistent dimensional strength and chemical resistance suitable for water systems.
  • Certifications & standards: Manufactured to common PVC industry specifications (ASTM) and commonly supplied to meet NSF/ANSI requirements for potable water applications.
  • Installation: Use PVC primer and solvent cement on the slip end; apply an appropriate thread sealant (PTFE tape or compatible sealant) to the FPT threads before assembly.
  • Temperature & limitations: Typical maximum service temperature is approximately 140°F; do not use for compressed air or gas service—follow manufacturer warnings.
  • Applications: Ideal for irrigation, pool and spa plumbing, drainage, and general water conveyance where a threaded connection is required.

Choose the 435-040 when you need a simple, dependable transition between solvent-weld PVC piping and threaded components. Match nominal pipe sizes, follow proper solvent-welding and thread-sealing procedures, and consult local plumbing codes and manufacturer documentation for safe installation.

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Frequently Asked Questions

What pipe size and connections does this adapter fit?
Fits 4" nominal Schedule 40 PVC pipe (slip/socket) and mates with a 4" male pipe thread (FPT) for threaded components.
How should I install the slip and threaded ends?
Solvent-weld the slip end using PVC primer and cement. Use PTFE tape or compatible thread sealant on the FPT threads before assembly.
Can this fitting be used for potable water and pressure systems?
Yes—commonly supplied for potable water and manufactured to meet standard PVC specifications; do not use for compressed air or gas.