heat exchanger replacement

The heat exchangers below are 1:1 replacements for the GEA WTT GBS525M

Fits directly without modifying your pipework — delivered quickly from our own stock.

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Installers and service companies order from their own net price list once their business account has been approved.

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UNEX PBG20M-10 — replacement for GEA WTT GBS525M-10

GEA WTT GBS525M-10 can be replaced by UNEX PBG20M-10

UNEX PBG20M-10

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-14 — replacement for GEA WTT GBS525M-14

GEA WTT GBS525M-14 can be replaced by UNEX PBG20M-14

UNEX PBG20M-14

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-20 — replacement for GEA WTT GBS525M-20

GEA WTT GBS525M-20 can be replaced by UNEX PBG20M-20

UNEX PBG20M-20

In stock — fast delivery

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-24 — replacement for GEA WTT GBS525M-24

GEA WTT GBS525M-24 can be replaced by UNEX PBG20M-24

UNEX PBG20M-24

In stock — fast delivery

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-30 — replacement for GEA WTT GBS525M-30

GEA WTT GBS525M-30 can be replaced by UNEX PBG20M-30

UNEX PBG20M-30

In stock — fast delivery

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-34 — replacement for GEA WTT GBS525M-34

GEA WTT GBS525M-34 can be replaced by UNEX PBG20M-34

UNEX PBG20M-34

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-40 — replacement for GEA WTT GBS525M-40

GEA WTT GBS525M-40 can be replaced by UNEX PBG20M-40

UNEX PBG20M-40

In stock — fast delivery

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-44 — replacement for GEA WTT GBS525M-44

GEA WTT GBS525M-44 can be replaced by UNEX PBG20M-44

UNEX PBG20M-44

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-50 — replacement for GEA WTT GBS525M-50

GEA WTT GBS525M-50 can be replaced by UNEX PBG20M-50

UNEX PBG20M-50

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-60 — replacement for GEA WTT GBS525M-60

GEA WTT GBS525M-60 can be replaced by UNEX PBG20M-60

UNEX PBG20M-60

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-70 — replacement for GEA WTT GBS525M-70

GEA WTT GBS525M-70 can be replaced by UNEX PBG20M-70

UNEX PBG20M-70

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-80 — replacement for GEA WTT GBS525M-80

GEA WTT GBS525M-80 can be replaced by UNEX PBG20M-80

UNEX PBG20M-80

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-90 — replacement for GEA WTT GBS525M-90

GEA WTT GBS525M-90 can be replaced by UNEX PBG20M-90

UNEX PBG20M-90

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

UNEX PBG20M-100 — replacement for GEA WTT GBS525M-100

GEA WTT GBS525M-100 can be replaced by UNEX PBG20M-100

UNEX PBG20M-100

Available on request

1:1: same port-to-port dimensions (476 × 69 mm) and connection 22,35 mm solder or G1" external thread

The UNEX PBG20 is the 1:1 replacement for the GEA WTT GBS525M. The port-to-port dimensions are identical (476 × 69 mm) and the connections also correspond: 22.35 mm solder or G1" male thread (combi connection: both usable). You thus slide the new exchanger exactly into the place of the old one, without changing the pipework. Brazed plate heat exchangers such as these are widely used in heating, domestic hot water and heat pump installations. The PBG20 is built from plates of AISI 316L stainless steel, copper brazed, and is available from 10 to 100 plates. When ordering, keep the plate count of your current GBS525M: the GEA WTT GBS525M-60, for example, is replaced by the PBG20M-60. Replacement does not have to take weeks. Some versions are simply in stock in our warehouse in Oosterhout (the Netherlands) and the other sizes are quickly available on request. In the table above you will find the matching replacement for each type number. Prefer personal advice? Call +31 (0)162 429 068 or request a quote online; you will have our quotation within one working day.

Frequently asked questions about replacing the GEA WTT GBS525M

Will the UNEX PBG20 fit my GEA WTT GBS525M without modifications?

Yes. The replacement has the same port-to-port dimensions (476 × 69 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 GEA WTT GBS525M available from stock?

4 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 GBS525M.

What does it cost to replace a GEA WTT GBS525M?

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

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Response within one working day

Heat exchanger news, once a month

New series, replacement options and technical articles. No offers, no drip campaigns.

You will first receive a confirmation email. How we handle your data is described in our privacy policy.

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