heat exchanger replacement

The heat exchangers below are 1:1 replacements for the GEA WTT GBS-DW400H

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 PBT11-10 — replacement for GEA WTT GBS-DW400H-10

GEA WTT GBS-DW400H-10 can be replaced by UNEX PBT11-10

UNEX PBT11-10

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

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UNEX PBT11-14 — replacement for GEA WTT GBS-DW400H-14

GEA WTT GBS-DW400H-14 can be replaced by UNEX PBT11-14

UNEX PBT11-14

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

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UNEX PBT11-20 — replacement for GEA WTT GBS-DW400H-20

GEA WTT GBS-DW400H-20 can be replaced by UNEX PBT11-20

UNEX PBT11-20

On order

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

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UNEX PBT11-24 — replacement for GEA WTT GBS-DW400H-24

GEA WTT GBS-DW400H-24 can be replaced by UNEX PBT11-24

UNEX PBT11-24

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

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UNEX PBT11-30 — replacement for GEA WTT GBS-DW400H-30

GEA WTT GBS-DW400H-30 can be replaced by UNEX PBT11-30

UNEX PBT11-30

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

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UNEX PBT11-34 — replacement for GEA WTT GBS-DW400H-34

GEA WTT GBS-DW400H-34 can be replaced by UNEX PBT11-34

UNEX PBT11-34

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

Request a quote View in webshop

UNEX PBT11-40 — replacement for GEA WTT GBS-DW400H-40

GEA WTT GBS-DW400H-40 can be replaced by UNEX PBT11-40

UNEX PBT11-40

On order — expected around 14/12/2026

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

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UNEX PBT11-44 — replacement for GEA WTT GBS-DW400H-44

GEA WTT GBS-DW400H-44 can be replaced by UNEX PBT11-44

UNEX PBT11-44

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

Request a quote View in webshop

UNEX PBT11-50 — replacement for GEA WTT GBS-DW400H-50

GEA WTT GBS-DW400H-50 can be replaced by UNEX PBT11-50

UNEX PBT11-50

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

Request a quote View in webshop

UNEX PBT11-60 — replacement for GEA WTT GBS-DW400H-60

GEA WTT GBS-DW400H-60 can be replaced by UNEX PBT11-60

UNEX PBT11-60

In stock — fast delivery

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

Request a quote View in webshop

UNEX PBT11-70 — replacement for GEA WTT GBS-DW400H-70

GEA WTT GBS-DW400H-70 can be replaced by UNEX PBT11-70

UNEX PBT11-70

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

Request a quote View in webshop

UNEX PBT11-80 — replacement for GEA WTT GBS-DW400H-80

GEA WTT GBS-DW400H-80 can be replaced by UNEX PBT11-80

UNEX PBT11-80

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

Request a quote View in webshop

UNEX PBT11-90 — replacement for GEA WTT GBS-DW400H-90

GEA WTT GBS-DW400H-90 can be replaced by UNEX PBT11-90

UNEX PBT11-90

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

Request a quote View in webshop

UNEX PBT11-100 — replacement for GEA WTT GBS-DW400H-100

GEA WTT GBS-DW400H-100 can be replaced by UNEX PBT11-100

UNEX PBT11-100

Available on request

1:1: same port-to-port dimensions (281 × 73 mm) and connection G1" external thread

Request a quote View in webshop

Does your GEA WTT GBS-DW400H need replacing? Then the UNEX PBT11 is the 1:1 alternative. Because the port-to-port dimensions are identical (281 × 73 mm) and the connections are the same G1" male thread, the PBT11 slides into the place of your current exchanger without modifications. This brazed plate heat exchanger has plates of AISI 316L stainless steel and is copper brazed. With versions from 10 to 100 plates, there is a replacement with the same plate count for every GBS-DW400H; a GEA WTT GBS-DW400H-80, for example, matches the PBT11-80. Use the table above to look up your type number. Replacement thus remains a simple swap rather than rebuilding the installation. Some versions are in stock in Oosterhout (the Netherlands), the rest are quickly available on request. Request a no-obligation quotation — you will receive it within one working day — or call us on +31 (0)162 429 068 to determine the right version together.

Frequently asked questions about replacing the GEA WTT GBS-DW400H

Will the UNEX PBT11 fit my GEA WTT GBS-DW400H without modifications?

Yes. The replacement has the same port-to-port dimensions (281 × 73 mm) and the same connections (G1" external thread), so the existing pipework does not need to be modified.

Is the replacement for the GEA WTT GBS-DW400H available from stock?

3 of the 14 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 100 plates, in 14 versions. Choose the version with the same plate count as your current GEA WTT GBS-DW400H.

What does it cost to replace a GEA WTT GBS-DW400H?

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