Description
Lasco 437338 (437-338) Schedule 40 PVC Reducer Bushing – 3″ Spigot x 2″ Slip (Socket) – White
The Lasco 437338 is a Schedule 40 PVC reducer bushing used to step down from a 3″ hub/socket fitting to 2″ PVC pipe. The 3″ spigot end is sized to glue into the socket of a 3″ PVC fitting (like a tee, coupling, or valve), while the 2″ slip (socket) end accepts 2″ PVC pipe for solvent-weld installation.
Key Features
- Part Number: 437338 (often shown as 437-338)
- Fitting Type: Reducer bushing
- Size: 3″ x 2″
- Connections: 3″ Spigot (SPG) x 2″ Slip (Socket)
- Material: Schedule 40 PVC
- Color: White
- Use: Reduces a 3″ socket connection down to a 2″ glued pipe run
Common Uses
- Equipment pad manifolds where a 3″ main line branches into 2″ plumbing
- Reducing at tees, valves, unions, or couplings without changing the 3″ hub fitting
- Pool/spa circulation plumbing, water features, and irrigation headers
Installation Notes
- Spigot end: Glues into a 3″ slip socket (hub) on another fitting (it does not glue onto 3″ pipe).
- 2″ socket end: Glues to 2″ PVC pipe using primer and PVC cement rated for pressure plumbing.
- Dry-fit first: Confirm alignment and insertion depth before cementing.
- Avoid over-cementing: Excess cement can squeeze into the flow path—use proper primer/cement technique.
Related Products
- 3″ Schedule 40 PVC Tees
- 3″ Schedule 40 PVC Couplings
- 2″ Schedule 40 PVC Pipe
- 2″ PVC Unions
- 3″ PVC Unions
- PVC Primer
- PVC Cement
- Shop Lasco
Installation & Maintenance Tips
- Deburr and chamfer pipe ends before gluing to help prevent pushing cement out of the joint.
- Support nearby plumbing to reduce pipe strain—stress is a common cause of hairline cracks and leaks over time.
- Allow proper cure time before pressurizing (temperature and humidity affect cure time).
- If you expect frequent equipment removal, add unions near the reducer location to avoid cutting pipe later.
