Description
Lasco 437101 (437-101) Schedule 40 PVC Reducer Bushing – 1″ Spigot x 1/2″ Slip (Socket) – White
The Lasco 437101 (also listed as 437-101) is a Schedule 40 PVC reducer bushing used to step down from a 1″ hub/socket fitting to 1/2″ PVC pipe. The 1″ spigot end glues into the socket of a 1″ PVC fitting (tee, coupling, valve, etc.), while the 1/2″ slip (socket) end accepts 1/2″ PVC pipe for a solvent-weld connection.
Key Features
- Part Number: 437101 (437-101)
- Fitting Type: Reducer bushing
- Size: 1″ Spigot x 1/2″ Slip (Socket)
- Material: Schedule 40 PVC
- Color: White
- Use: Reduces a 1″ socket connection down to a 1/2″ glued pipe run
Common Uses
- Reducing a 1″ manifold port down to 1/2″ plumbing for small accessory lines
- Pool/spa equipment pads (small bypasses, feeder lines, drains, and sampling ports)
- 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).
- 1/2″ socket end: Glues to 1/2″ PVC pipe using primer and PVC cement rated for pressure plumbing.
- Dry-fit first: Confirm alignment and insertion depth before cementing.
- Support the line: Reduce pipe strain so the bushing isn’t carrying bending stress.
Related Products
- Search: Lasco 437101
- Search: Lasco 437-101
- Search: 1″ Spigot x 1/2″ Slip Reducer Bushing
- Search: 1″ Schedule 40 PVC Tees
- Search: 1/2″ Schedule 40 PVC Pipe
- Search: 1/2″ PVC Couplings
- Search: PVC Primer
- Search: PVC Cement
- Search: Lasco Schedule 40 PVC Fittings
Installation & Maintenance Tips
- Deburr/chamfer pipe ends and keep sockets clean and dry for the strongest solvent-weld joint.
- Use fresh primer/cement and follow cure-time guidance before pressurizing (temperature and humidity affect cure time).
- Avoid forcing misaligned plumbing into place—pipe strain can crack fittings over time.
- If used near equipment, add a union downstream for easier future service.









