WaterMark Product Search
You can search the WaterMark Product Database to check if a plumbing or drainage product has been certified under the WaterMark Certification Scheme, which ensures the product is fit for purpose and authorised for use in plumbing and drainage systems.
If you’re having trouble finding your product, try the advance search options to search specifically for the Licence/Certificate Number; Model ID; Model Name; Brand Name; Product Type; Specification or Licence Holder.
Licence/Certificate Numbers are a 6 digit number, e.g if you have a 4 digit Licence Number you need to add 00 at the start - 001234.
Some cool text
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FFFT250080F
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
DERTAP10020
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
DERTAP10020F
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
DERTAP10020Q
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
DERTAP10020QF
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FSO100
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FS100
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
SOSO100
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FSO100TCF
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FSO100TC
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
SOSO100F
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
CAP100F
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FSO100F
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FS100F
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
CAP100
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FFFT100100
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
FFFT100100F
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
SOSOSOT100100F
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 001989 Exp:
14/05/2030
Model ID
SOSOSOT100100
Model Name
N/A
Brand
DERWENT
Active Product
Authorised Product, Safe to install
Licence: 002001 Exp:
19/12/2026
Model ID
Series 110'
Model Name
C-Tec
Brand
C-Tec
Active Product
Authorised Product, Safe to install
Licence: 002001 Exp:
19/12/2026
Model ID
Series 110**
Model Name
C-Tec
Brand
C-Tec