Best current price£3.18from OnBuy.com
Shopping.co.uk recommended and popular offers
OnBuy.com£3.18Visit shop Thomas Dudley Top Hat Washer - Universal (1/2" & 3/4") - Pwatap370296 5051258019325
Visit shop
B&Q£3.29Visit shop B&Q - Top Hat WasherUniversal (1/2" & 3/4")Pwatap370296
Visit shop2 offers from £3.18 - £3.29
View price history by clicking the chart icon.
The Thomas Dudley Top Hat Washer is designed for professional plumbers and DIY enthusiasts who require a dependable, universal sealing solution for 1/2" and 3/4" plumbing systems. Its primary benefit is the versatile 'top hat' design, which ensures a tight, leak-proof seal across a wide range of fittings, though users should ensure their specific pipe diameter matches these industry-standard sizes before installation.
| Model Part Number | PWATAP370296 |
|---|---|
| Brand | Thomas Dudley |
Yes, the material is designed to withstand standard domestic hot water temperatures.
The washer is intended for the fitting union or valve, not the pipe material itself, so it is compatible with standard fittings used on both types of pipe.
In most properly fitted unions, the washer provides the seal. PTFE tape is generally not required on the washer itself, though it may be used on thread connections if necessary.
It is recommended to replace the washer if you disassemble the connection to ensure a fresh, reliable seal.
The wider 'brim' of the top hat should face the side that requires the most compression, typically toward the valve seat.
Ensure the valve seat is clean and free of debris. If the seat is damaged, the washer may need a cleaner surface to seal correctly.
Verify that you are using the correct size for your fitting; while the washer covers both 1/2" and 3/4", ensure it is properly centered before tightening.
