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

Last Updated - 13/05/2026 Sort By:

Best Choice
VELPAX

New
RV Water Pump 12V DC, 4.5GPM 45PSI, Self-Priming Diaphragm Pump with Heavy Duty Pressure Switch and Strainer for RV, Mar
【Diaphragm Pump Specifications】- 12V DC water pump features 4.0 gallons per minute water flow, the pressure switch is se

£67.99
VeYocilk

New
VeYocilk DC 12V Water Pump,1GPM 4L/Min 131Psi Self Priming Diaphragm Pump with Pressure Switch and 2 Hose Clamps,UK Plug
【Features】:The Rated power:70W;Protect pressure:131Psi;Pressure Setting:0.9MPA.The Max head&Suction lift:98.5FT& 1.5M.

£29.99
New
SEAFLO 40PSI Diaphragm Pump Marine Boat Self Priming Water High Pressure Pump
Priming Capabilities:4 feet (1.2 m) suction lift. Built-in pressure switch, to automatically turn on and off as you turn

£29.99
Best Value
Seaflo

New
Seaflo 12V 1.2 GPM 35 PSI Water Pressure Diaphragm Pump
Able to supply water to two taps. 2 years warranty.

£23.99
Used
Diaphragm Pumps
Versa matic, diaphragm pumps, all working and serviced, 9 available, lots of hoses and fittings

£187.90
Seaflo

Used
Seaflo 12V 1.2 GPM 35 PSI Water Pressure Diaphragm Pump
Able to supply water to two taps. 2 years warranty.

£22.40
Seaflo

New
Seaflo 55-Series Diaphragm Pump - 12V DC, 5.5 GPM, 60 PSI with HEAVY DUTY PRESSURE SWITCH
Self priming. 5 chamber diaphragm pump. Built-in pressure switch, it automatically turns on and off as you turn your tap

£93.99
New
AQ +Q Diaphragm pump, for water boosting, aquatics, caravan, reverse osmosis
Reverse O PUMP-001- 24Volt 2Amp 100gpd booster pump for RO 200 & 400.

£20.00
LumaBrite

New
LumaBrite 12V DC Water Pump, 7.0GPM 70PSI RV Fresh Caravan Water Pump Five Chamber Self-Priming Diaphragm Pump with Heav
Updated 5-chamber Design & Pressure Adjustable: Designed to better meet your RV needs, the LumaBrite 12V water pump boas

£85.99 £88.99
Used
ARO Ingersoll Rand Air Operated Double Diaphragm Pump — Aluminium — Industrial
ARO by Ingersoll Rand air operated double diaphragm (AODD) pump. Compact series, aluminium body construction. Suitable f

£225.00
LumaBrite

New
LumaBrite Caravan Water Pump 12V 3.0GPM 50PSI RV Diaphragm Water Pump Self-Priming with Heavy Duty Pressure Switch and S
High Performance: This LumaBrite 12v water pump delivers a powerful performance of 3GPM (3 gallons per minute) and 50PSI

£62.99
LumaBrite

Used
LumaBrite Caravan Water Pump 12V 3.0GPM 50PSI RV Diaphragm Water Pump Self-Priming with Heavy Duty Pressure Switch and S
High Performance: This LumaBrite 12v water pump delivers a powerful performance of 3GPM (3 gallons per minute) and 50PSI

£57.52
New
12V 70PSI 1.1 GPM SEAFLO Marine Boat Diaphragm Water Pressure Self Priming Pump
Pump, self priming, capable of being run dry. Priming Capabilities 4 feet (1.2 m) suction lift. It provides up to 1.2 ga

£29.99
VerRich

New
VerRich 12V Water Pumps Diaphragm Pump 70W 4 L/Min 1GPM 0.9MPA 131 PSI for Faucet Garden(G1/2" 20mm Connector)
VerRich Micro Water Pump Size: L6.3”x W3.94”x H2.36”(16*10*6CM);Working power supply current: 5-6A;Rated power:70W;Gener

£21.99
New
12V 70W Water Pump High Pressure Diaphragm Self Priming 160PSI 6L/Min RV Caravan
Power: 70W. This item is a Diaphragm Pump. It is easy to install, small-sized, large flow and high pressure. 1 x Diaphra

£9.89
zalati

New
zalati High-Pressure Pump DC 12V 6L/min Self Priming Water Pump Automatic Switch for Car Washing Boat Cleaning and Garde
Good Replacement for Your Old Water Pump or use it as Water Pressure Booster, Sprinkler System

£11.99
New
SEAFLO 12V 60 PSI 1.3 GPM Diaphragm Pump Boat Marine RV Self Priming Water Pump
Pump, self priming, capable of being run dry. Priming Capabilities 6 feet (1.8 m) suction lift. It provides up to 1.4 ga

£37.99
New
Self Priming RV Fresh Water Diaphragm Pump Boat RV Water Pump 12V 50 PSI 4.0 GPM
Say goodbye to the tedious task of manual priming. This pump has an automatic self - priming feature. It can draw water

£36.90
New
12V Water Pumps Diaphragm Pump with Power Supply Adaptor and 2 Adjustable Hose C
This Diaphragm pump could work constantly for 30-60Minutes, and need to take a rest for 10-20 Mins. Smartflow Self Primi

£41.20
Used
Diaphragm Pump High Quality Volts12 NOM.(9-14.4V) Diaphragm Pump
Diaphragm Pump High Quality Volts12 NOM.(9-14.4V) AMP 4.0A FLOW 4.9 LPM PRESS 90 PSL (6.5) BAR CUTOFF PROFESSIONAL Diaph

£16.15
New
Replacement Diaphragm for AAA Hand Bilge Pump 18510 Boat Yacht
AAA Hand bilge pump for 1" hose 18510. Material: Black rubber.

£8.65
New
12v 100psi 5.2lpm Shurflo Diaphragm Pump For Water Fed Pole Window Cleaning
It is capable of working with both hot & cold water Window Cleaning systems. Self-priming pump with integral internal pr

£95.00
New
12V Water Pump High Pressure Diaphragm Self Priming 50PSI 12.5L/Min RV Caravan
Using a unique integrated diaphragm and internal bypass to ensure long life and optimal performance of all piping system

£38.99
New
CW474 Flowjet Diaphragm Pump 1/2 Brand New In Box
brand new in box, but the box is tatty less than half price comes with adapters for connections see pictures or ask ques

£208.70
New
Air Operated Diaphragm Pump 20-35L/min Aluminum Alloy for Chemical Paint Water
Its compact construction saves space and allows for easy installation and maintenance. 1 Air-Operated Diaphragm Pump. It

£199.44

25 Diaphragm Pumps deals are available from: Amazon, eBay stores, starting from £8.65.
The biggest discount we found is 3% on LumaBrite 12V DC Water Pump, 7.0GPM 70PSI RV Fresh Caravan Water Pump Five Chamber Self-Priming Diaphragm Pump with Heavy Duty Pressure Switch and Strainer for RV, Marine, Yacht, Caravan at Amazon.
The lowest price we found is £8.65 while the highest is £225.00.
Prices for the best Diaphragm Pumps deals average at £66.59.
Last updated on May 13, 2026.
We scanned these quality online stores and more to deliver you with the best offers online available for Diaphragm Pumps.