Best Diaphragm Valves Deals Online in the UK (25 Deals Found)

Last Updated - 15/12/2025 Sort By:

Best Choice
NEKAWA

New
2 x Inlet Float Valve Diaphragm Washer - Spare Rubber Ball Valve WASHERS - Replacement Diaphragm Washer - FITS for All S
FITS FOR ALL Current SIAMP INLET VALVES: 95 95L 99 99T 99B

£3.19 £3.90
Free Shipping
JAM2DAY

New
2 x Toilet Cistern Diaphragm Washers For Ball Float Valve - 32mm Diameter Rubber
Pack of 2 x 32mm quality rubber toilet diaphragm washers.

£2.98
Free Shipping
New
Siamp Cistern Inlet Filling Valve Diaphragm Washer Seal 34951307 - SIAMPWASHER
Siamp Compatible Cistern Valve Inlet fill valve Diaphragm washer. Fits all siamp ball valves. Suits all Siamp bottom and

£5.55
lcyen

New
3 Pcs Diaphragm Washer, Spare Rubber Ball Valve, Replacement Diaphragm Washer Set, Toilet Fill Valve Gasket, Diaphragm o
【Specification】 Each standard flush valve seal in our package measures approximately 27mm in diameter and 15mm in height

£3.63 £3.99
Free Shipping
New
10X Siamp Cistern Inlet Filling Valve Diaphragm Washer Seal 34951307 Pack of 10
Fits all types of Siamp fill Valves.

£8.99
Armitage Shanks

New
Armitage Shanks 32mm 1 1/4 inch Quite Valve Hushflow Float diaphragm Washer inlet fill
Armitage Shanks 32mm 1 1/4 inch Quite Valve Hushflow Float diaphragm Washer inlet fill

£4.69
Free Shipping
Best Value
SIAMP

New
2 x SIAMP Diaphragm Inlet Float Valve Washer, Rubber, 95 95L 99T 99B 99 Duravit Laufen Twyford
contains 2 x SIAMP Diaphragm 34951307, Fits majority of SIAMP Side and Bottom Entry inlet Valve

£4.30 £4.85
Free Shipping
New
Geberit Washer Replacement Diaphragm Rubber Cistern Inlet Flush Valve Seal
240.771.00.1 Inlet valve washer for Geberit water ball valves.

£5.95
"N/A"

New
Twin Pack Armitage Shanks Ideal Standard Univalve QT Style Cistern Inlet Fill Valve Diaphragm Washer SV32967
Twin Pack (Qty 2)

£5.99 £6.49
Free Shipping
New
4x Geberit Replacement Clear Silicon Rubber Flush Valve Washer Seal Diaphragm
Silicon Washer to fit Geberit Flush Valve.

£7.95
Thunderfix

New
Thunderfix Diaphragm Washer for 32mm/1¼" Cistern Float Valve (Pack of 5)
Diaphragm Washer for Cistern Float Valve 32mm 1¼ Pack of 5

£1.69 £4.20
XIELBIS

New
3 Pack Replacement Rubber Ball Valve Washers,Replacement Diaphragm Washers Compatible with Siamp Inlet Valves,Including
Premium rubber replacement seal designed specifically for Siamp valves.

£4.29
Free Shipping
New
Siamp Cistern Inlet Filling Valve Diaphragm Washer Seal 34951307 - SIAMPWASHER
Siamp Cistern Valve Inlet fill valve Diaphragm washer. Fits all siamp ball valves. Suits all Siamp bottom and side inlet

£60.00
FENGRUI

New
Set of 3 Replacement Diaphragm Washers Compatible with Siamp Inlet Valves,Black Replacement Rubber Ball Valve Washers Co
Package contains: This comprehensive kit includes 3 rubber diaphragm washers. It provides a universal alternative soluti

£3.89 £3.99
Free Shipping
New
2 x Ball Valve Diaphragm Washer 1.25 “ 32mm Cold water Cistern Toilet
2 X BALLVALVE DIAPHRAGM WASHERS FOR CISTERN FLOAT VALVES. Rubber washer for plastic ball valve arms.

£2.32
NAGRAN

New
S9 Pro / S12 Pro Duckbill Valve Silicone Diaphragm, Replacement Parts Accessories(4 Piece Set)
NAGRAN duckbill valves and silicone diaphragm fittings are universal for most wearable breast pumps on the market, such

£4.35 £4.50
Free Shipping
New
Siamp Compact 99t Top Inlet Valve Diaphragm Washer Gasket (Pair) x2
Easy DIY solution to a big flaw in the Siamp range 99t compact top inlet valves. I have these installed on all my Siamp

£7.99
New
Flush Valve Spare Seal Diaphragm Washer for AFV50100 & AFV50200 Macdee Valves
Spare diaphragm washer ONLY for Kayla Macdee flushing valve. Made of silicone rubber.

£5.19
New
Diaphragm Washer for Part 2 & 3 Toilet Cistern Inlet Float Valve 32mm - (5 Pack)

£3.99
New
2 no Armitage Shanks 32mm 1 1/4 inch Quite Valve Hushflow Float diaphragm
Size 32mm (1-1/4"). They are not interchangeable. All red, red & white or all white, this indicates year of manufacture

£5.78
New
SIAMP 34951307 Toilet Cistern Inlet Filling Valve Diaphragm Washer – Genuine Rep
Fits all SIAMP ball valves and inlet systems (bottom & side inlet). Designed for use with SIAMP inlet valves. Ideal fix

£3.36
New
Dudley Hydroflo Cistern Ball Valve Diaphragm Washer Replacement Float Diaphragm
The Thomas Dudley diaphragm washer is designed for use in all Hydroflo inlet valves, both side or bottom inlet. Hydroflo

£4.83
New
Cistern Inlet Filling Valve Diaphragm - Washer Seal Siamp Twyford B&Q Claygate
Suits all Siamp bottom and side inlet filling valves. Toilet Cistern Inlet Washer Seal Diaphragm. Inlet valve not includ

£3.55
New
Valve Cover diaphragm Vauxhall 5607251, 55573764, 98001142, 98014752, 89800
Diaphragm Valve Crankcase Cover for Vauxhall and Opel. Astra J (10-16) - A17DTJ, A17DTL, A17DTR. Astra H (04-10) - A17DT

£14.99
New
Roca Replacement Dual Flush Valve D1D D2D D4D Washer Diaphragm Seal AH0007100R
Genuine Roca Part. Dispatched Straight away.

£4.49

25 Diaphragm Valves deals are available from: Amazon, eBay stores, starting from £1.69.
The biggest discount we found is 10%% on 2 x Inlet Float Valve Diaphragm Washer - Spare Rubber Ball Valve WASHERS - Replacement Diaphragm Washer - FITS for All SIAMP Inlet VALVES Black at Amazon.
The lowest price we found is £1.69 while the highest is £60.00.
Prices for the best Diaphragm Valves deals average at £7.36.
Last updated on December 15, 2025.
We scanned these quality online stores and more to deliver you with the best offers online available for Diaphragm Valves.