Toggle Nav
fast delivery
Fast Delivery
With our own fleet.
fast delivery
Platinum
Trusted Service Award
fast delivery
Free Click and Collect
Click and collect from any of our stores.

Fernox F4 E Xpress Leak Sealer - 400ml

(1 review)
£19.70 £16.42
age verification

Age Verification

This product can only be sold to customers over 18 years of age and we will require your date of birth on your account at checkout.

+ -
Fernox F4 express leak sealer seeks out and seals most leaks and weeps in sealed systems without causing blockages or pump seizure saving time and money on draining down and unnecessary repairs. It can be quickly and conveniently added via a radiator adaptor or the filling loop supplied.
  • Combats emergency leaks and system pressure loss
  • Simple to use with no mess
  • 100% recyclable can
  • 400ml can
  • Non-toxic, environmentally friendly formulation
read more...
Manufacturer
Fernox
Manufacturer Product Number
62422
Weight
0.000000
Manufacturers Warranty
1 Year (Subject to Manufacturers T&C's)
System use
Leak stop
Customer Questions
No Questions
Please mind that only logged in users can submit questions.
Helpful tools
MRCH BTU calculator BTU Calculator
MRCH find an installer Find an Installer