Ripca Ripault
Ripca Ripaults 2740 Mini relay normally open 24V 22A 4-pins
£2.99
Lowest price we found
£1.50
This spark plug cap is a neon red HT tester that fits onto the threaded terminal on top of the plug.
It screws into the inbuilt screw for the HT cable and has a waterproof cover.
At a glance
Price at the shop, last 78 days
The price has stayed at £1.50 since 19 August.