Description
Polypipe PST3 40mm 19mm Seal Shower Trap with 70mm Chrome Grid
Polypipe PST3 is a 40mm shower trap with a 19mm water seal and 70mm chrome plated grid. It is designed for shower tray waste installations where a compact shower trap is required with a neat chrome visible finish.
Polypipe PST3 Trade Overview
The Polypipe PST3 shower trap is a practical choice for plumbers, bathroom fitters and maintenance teams working on shower tray waste pipework. It has a compact body, making it useful for shower installations where space below the tray may be limited.
This trap uses a 40mm outlet connection for standard shower waste pipework. The 19mm water seal helps reduce drain odours from coming back through the shower waste, while the chrome plated 70mm grid gives a clean finish on the visible side of the shower tray.
The white polypropylene trap body is lightweight, durable and suitable for everyday plumbing work. The removable lower section helps with cleaning and maintenance if the trap needs to be accessed in future.
Key Features
- Polypipe PST3 shower trap
- 40mm outlet connection for shower waste pipework
- 19mm water seal to help reduce drain odours
- 70mm chrome plated grid for a clean visible finish
- Compact trap body for shower tray installations
- White polypropylene construction
- Suitable for shower waste repair and replacement work
- Good option for bathroom refurbishment jobs
- Useful for trade plumbing and maintenance work
- Designed for above ground waste trap installations
Common Uses
- Shower tray waste installations
- Replacement of old 40mm shower traps
- Bathroom refurbishment projects
- Domestic shower waste repairs
- Rental property bathroom maintenance
- Trade plumbing installations
- Compact under-tray waste pipework
Why Choose a 19mm Seal Shower Trap?
A 19mm seal shower trap is useful where space below the shower tray is restricted. It gives a lower profile option compared with deeper water seal traps, while still providing a trap seal for the shower waste connection.
The Polypipe PST3 is a useful stock item for bathroom fitters and plumbers because it suits common 40mm shower waste pipework. The 70mm chrome grid also gives a tidy finish on the shower tray.
Installation Notes
Before fitting, check that the shower tray waste hole, trap body and waste pipe route are suitable. Make sure the trap is seated correctly and that the sealing washers are positioned properly. Connect the 40mm waste pipe securely, then run water through the shower tray and check all joints for leaks.
The Polypipe PST3 is a 40mm shower trap. For sink, basin or bath waste installations, use a suitable trap designed for that application.
Browse more products in our 40mm Waste Traps 1½” range, or view the full Waste Traps, Valves & Connectors category.
For manufacturer range information, see the Polypipe drain water trap systems information.







