heat exchanger replacement

The heat exchangers below are 1:1 replacements for the GEA WTT GBS757H

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.

Request a business account

UNEX PBG45H-30 — replacement for GEA WTT GBS 757H-30

GEA WTT GBS 757H-30 can be replaced by UNEX PBG45H-30

UNEX PBG45H-30

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-40 — replacement for GEA WTT GBS 757H-40

GEA WTT GBS 757H-40 can be replaced by UNEX PBG45H-40

UNEX PBG45H-40

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-44 — replacement for GEA WTT GBS 757H-44

GEA WTT GBS 757H-44 can be replaced by UNEX PBG45H-44

UNEX PBG45H-44

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-50 — replacement for GEA WTT GBS 757H-50

GEA WTT GBS 757H-50 can be replaced by UNEX PBG45H-50

UNEX PBG45H-50

In stock — fast delivery

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-60 — replacement for GEA WTT GBS 757H-60

GEA WTT GBS 757H-60 can be replaced by UNEX PBG45H-60

UNEX PBG45H-60

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-70 — replacement for GEA WTT GBS 757H-70

GEA WTT GBS 757H-70 can be replaced by UNEX PBG45H-70

UNEX PBG45H-70

In stock — fast delivery

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-80 — replacement for GEA WTT GBS 757H-80

GEA WTT GBS 757H-80 can be replaced by UNEX PBG45H-80

UNEX PBG45H-80

On order — expected around 12/10/2026

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-90 — replacement for GEA WTT GBS 757H-90

GEA WTT GBS 757H-90 can be replaced by UNEX PBG45H-90

UNEX PBG45H-90

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-110 — replacement for GEA WTT GBS 757H-100

GEA WTT GBS 757H-100 can be replaced by UNEX PBG45H-110

UNEX PBG45H-110

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-120 — replacement for GEA WTT GBS 757H-120

GEA WTT GBS 757H-120 can be replaced by UNEX PBG45H-120

UNEX PBG45H-120

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-130 — replacement for GEA WTT GBS 757H-130

GEA WTT GBS 757H-130 can be replaced by UNEX PBG45H-130

UNEX PBG45H-130

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-140 — replacement for GEA WTT GBS 757H-140

GEA WTT GBS 757H-140 can be replaced by UNEX PBG45H-140

UNEX PBG45H-140

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

UNEX PBG45H-150 — replacement for GEA WTT GBS 757H-150

GEA WTT GBS 757H-150 can be replaced by UNEX PBG45H-150

UNEX PBG45H-150

Available on request

1:1: same port-to-port dimensions (460 × 198 mm) and connection G2" external thread

Request a quote View in webshop

For installers who need to replace a GEA WTT GBS757H, the UNEX PBG45 is the logical choice: a 1:1 replacement with identical port-to-port dimensions (460 × 198 mm) and the same G2" male thread connections. The pipework does not need to be modified and adapters are unnecessary. Brazed plate heat exchangers of this size are found in a wide range of heating and cooling installations. The PBG45 has plates of AISI 316L stainless steel, copper brazed, and is available from 30 to 150 plates. Take over the plate count of the current exchanger: a GEA WTT GBS 757H-150 is replaced by the PBG45H-150. When replacing, speed often matters most. Some versions are therefore in stock in Oosterhout (the Netherlands) and the other sizes are quickly available on request — so you do not have to wait weeks for the original supplier. Look up your type number in the table above, call +31 (0)162 429 068 to discuss, or request a quote straight away. You will receive our quotation within one working day.

Frequently asked questions about replacing the GEA WTT GBS757H

Will the UNEX PBG45 fit my GEA WTT GBS757H without modifications?

Yes. The replacement has the same port-to-port dimensions (460 × 198 mm) and the same connections (G2" external thread), so the existing pipework does not need to be modified.

Is the replacement for the GEA WTT GBS757H available from stock?

2 of the 13 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 30 to 150 plates, in 13 versions. Choose the version with the same plate count as your current GEA WTT GBS757H.

What does it cost to replace a GEA WTT GBS757H?

Request a no-obligation quote; you will receive pricing within one working day. Call us for expert advice: +31 (0)162 429 068.