Fernox F4 LSI leak sealer seals most weeps and small inaccessible leaks in sealed systems without causing blockages of the pump, air vents etc saving time and money on draining down and unnecessary repairs.
- Ideal for reducing system pressure loss
- Compatible with all metals and materials commonly used in heating systems
- 500ml easy-pour bottle
- Non-toxic, environmentally friendly formulation
Your item will be carefully packed and dispatched within 24 hours of receiving payment (Mon. – Fri.)
All orders will be dispatched on the same day if payment is received before 3pm.
Orders weighing less than 2kg are dispatched via Royal Mail 1st Class.
Orders weighing more than 2kg are dispatched via a 2 day courier.
If you are not happy with your purchase please return the item in its original packaging within 14 days of delivery. The entire amount paid will be refunded via PayPal. Any and all costs for postage returns will not be refunded. Any damage caused to the manufacturer’s packaging will result in rejection of the return, this includes the manufacturer’s seal being broken. We reserve the right to a 15% + postage fee reduction for items returned that were wrongly ordered or no longer needed.
If your item is faulty or you have received the incorrect product please contact us immediately using the eBay messaging system. Our Communication systems are monitored 9am – 5pm (Mon. – Fri.)