Lasco Reducing Bushing, 1 x 3/4" Spigot x Slip White PVC Schedule 40 | 437-131

Lasco SKU: 437131
Lasco Reducing Bushing, 1 x 3/4" Spigot x Slip White PVC Schedule 40 | 437 - 131 - Plumbing - img - 1

Lasco Reducing Bushing, 1 x 3/4" Spigot x Slip White PVC Schedule 40 | 437-131

Lasco SKU: 437131
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Lasco 437131 (437-131) Schedule 40 PVC Reducer Bushing – 1" Spigot x 3/4" Slip (Socket) – White

The Lasco 437131 (often shown as 437-131) is a Schedule 40 PVC reducer bushing that steps down from a 1" hub/socket fitting to 3/4" PVC pipe. The 1" spigot end is designed to glue into the socket of a 1" PVC fitting (tee, coupling, valve, etc.), while the 3/4" slip (socket) end accepts 3/4" PVC pipe for a solvent-weld connection.

Key Features

  • Part Number: 437131 (also listed as 437-131)
  • Fitting Type: Reducer bushing
  • Size: 1" Spigot x 3/4" Slip (Socket)
  • Material: Schedule 40 PVC
  • Color: White
  • Use: Reduces a 1" socket connection down to a 3/4" glued pipe run

Common Uses

  • Stepping down a manifold port without changing the larger hub fitting
  • Pool/spa equipment pad plumbing (auxiliary lines, bypasses, small returns)
  • Irrigation and general water plumbing where Sch 40 solvent-weld PVC is used

Installation Notes

  • Spigot end: Glues into a 1" slip socket (hub) on another fitting (it does not glue onto 1" pipe).
  • 3/4" socket end: Glues to 3/4" PVC pipe using primer and PVC cement.
  • Dry-fit first: Confirm alignment and insertion depth before cementing.
  • Support the line: Reduce pipe strain so the bushing isn’t carrying bending stress.

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Installation & Maintenance Tips

  • Deburr and chamfer pipe ends before gluing to help prevent wiping cement out of the joint during assembly.
  • Use the correct primer/cement and follow cure-time guidance before pressurizing (temperature and humidity affect cure time).
  • Keep sockets and pipe ends clean and dry for the strongest solvent-weld bond.
  • Use pipe supports to reduce vibration and stress near equipment pads and valves.
  • If you expect future equipment removal, add a union nearby to avoid cutting pipe later.
Questions about returns? View our return policy.

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