The heat exchangers below are 1:1 replacements for the Funke GPL4
Fits directly without modifying your pipework — delivered quickly from our own stock.
Installer or service company?
Installers and service companies order from their own net price list once their business account has been approved.

Funke GPL 4-10-H-30 can be replaced by UNEX PB5H-10
UNEX PB5H-10
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL 4-14-H-30 can be replaced by UNEX PB5H-14
UNEX PB5H-14
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL 4-20-H-30 can be replaced by UNEX PB5H-20
UNEX PB5H-20
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL 4-24-H-30 can be replaced by UNEX PB5H-24
UNEX PB5H-24
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL 4-30-H-30 can be replaced by UNEX PB5H-30
UNEX PB5H-30
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL 4-34-H-30 can be replaced by UNEX PB5H-34
UNEX PB5H-34
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL 4-40-H-30 can be replaced by UNEX PB5H-40
UNEX PB5H-40
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL 4-44-H-30 can be replaced by UNEX PB5H-44
UNEX PB5H-44
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread

Funke GPL 4-50-H-30 can be replaced by UNEX PB5H-50
UNEX PB5H-50
1:1: same port-to-port dimensions (120 × 73 mm) and connection 22,35 mm solder or G1" external thread
Frequently asked questions about replacing the Funke GPL4
Will the UNEX PB5 fit my Funke GPL4 without modifications?
Yes. The replacement has the same port-to-port dimensions (120 × 73 mm) and the same connections (22,35 mm solder, G1" external thread), so the existing pipework does not need to be modified.
Is the replacement for the Funke GPL4 available from stock?
3 of the 9 versions are in stock in our warehouse in Oosterhout, the Netherlands, and are delivered quickly. The other versions are available on request.
Which plate counts are available?
The replacements are available from 10 to 50 plates, in 9 versions. Choose the version with the same plate count as your current Funke GPL4.
What does it cost to replace a Funke GPL4?
Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.
