Tent & Awning Deals:
Unmissable Offers on Tents & Awnings
Have you discovered our blog yet?
Get inspired for your next adventure
Summer Offers:
Secure hot Deals!

  Camping Specialist Since 1958
  Free shipping from 50 €
Blog   Service
EN | DE
Language:
DeutschDeutsch
EnglishEnglish
NederlandsNederlands
ÖsterreichÖsterreich
FrançaisFrançais
ItalianoItaliano
EspañolEspañol
Shipping Country:
BelgiumBelgium
BulgariaBulgaria
DenmarkDenmark
GermanyGermany
EstoniaEstonia
FinlandFinland
FranceFrance
IrelandIreland
ItalyItaly
CroatiaCroatia
LatviaLatvia
LithuaniaLithuania
LuxembourgLuxembourg
NetherlandsNetherlands
AustriaAustria
PolandPoland
PortugalPortugal
RomaniaRomania
SwedenSweden
SwitzerlandSwitzerland
SlovakiaSlovakia
SloveniaSlovenia
SpainSpain
Czech RepublicCzech Republic
HungaryHungary
Tents Tents
All products in "Tents"
Outdoor & Leisure Outdoor & Leisure
All products in "Outdoor & Leisure"
Furniture Furniture
All products in "Furniture"
Household Household
All products in "Household"
Gas Gas
All products in "Gas"
Water & Sanitation Water & Sanitation
All products in "Water & Sanitation"
Electronics Electronics
All products in "Electronics"
Caravanning Caravanning
All products in "Caravanning"
Multimedia Multimedia
All products in "Multimedia"
Heating & Cooling Heating & Cooling
All products in "Heating & Cooling"
Clothing Clothing
All products in "Clothing"
Spare Parts Spare Parts
All products in "Spare Parts"
Brands Brands
All products in "Brands"
Trending Topics Trending Topics
All products in "Trending Topics"
New New
All products in "New"
Sale Sale
All products in "Sale"
Store Gera Store Gera
Change store
Address
Keplerstr. 4
07549 Gera
Email: fzc.gera@fritz-berger.de
Opening hours
01. March - October 31:
Mon. - Fri.: 09:00 - 18:00
Sat.: 09:00 - 14:00

01. November - February 28:
Mon. - Fri.: 09:00 - 12:00 & 13:00 - 18:00
Sat.: 09:00 - 14:00
To the store page Route planner
Blog Blog
All products in "Blog"
Language & Country
Language
Shipping country

Concentrated Waste-Water Tank Cleaner (800ml) Thetford Grey Water Fresh

RRP 13,95 €
12,99
16,24 € / l
Prices incl. statutory VAT, plus shipping
Get up to 5% Bonus with the Berger Loyalty Card
€ Bonus with the Berger Loyalty Card
We reward your loyalty
Every time you make a purchase with your Berger loyalty card, the value of your purchases (calculated selling price of items purchased after deduction of any discounts granted, excluding shipping costs) is credited to your loyalty card bonus account.
Get now your Loyalty Card!
 
Availability: Delivered within 3-5 working days
 Added

Article characteristics

Product details

Strong and effective Excellent odour control
Odour-free tank emptying of the grey water tank Against odours and deposits from grey water tank

Product description

Shower and sink in a bathroom

For the waste water tank (grey water tank)

Effectively removes deposits and prevents the development of unpleasant odours. Can be poured directly into the sink or shower drain. Facilitates the emptying of your waste water tank. For a fresh and clean waste water tank.


Advantages

  • Reduces the formation of deposits in the grey water tank
  • Excellent odour control of the grey water
  • Keeps grey water fresh and clean longer
  • Odourless emptying of the grey water tank

Features

Filling quantity 800 ml
Sanitary accessories Suitable for
Design Concentrate
ean 8710315995381
Manufacturer Article No. 30700AK

Legal information

Hazard warnings

Danger

H302 - Harmful if swallowed.

H318 - Causes serious eye damage.

H410 - Very toxic to aquatic life with long lasting effects.

Concentrated Waste-Water Tank Cleaner (800ml) Thetford Grey Water Fresh Concentrated Waste-Water Tank Cleaner (800ml) Thetford Grey Water Fresh Concentrated Waste-Water Tank Cleaner (800ml) Thetford Grey Water Fresh

General Safety Information

  • If medical advice is required, have packaging or label ready.
  • Keep out of the reach of children.
  • Read the label before use.
  • Wear protective gloves/protective clothing/eye protection/face protection.
  • Call a poison center, doctor or ... immediately.
  • Absorb spillage.
  • In case of contact with eyes: Rinse cautiously with water for several minutes. Remove any contact lenses if possible. Continue rinsing.

Manufacturer information

Thetford GmbH

Schallbruch 14

42781 Haan

Germany

infod@thetford.eu

Reviews (46) Verified valuation

4.78 / 5
46 Reviews
Verified ratings
5
80 %
4
17 %
3
2 %
2
0 %
1
0 %
Sort:
Franz K. 01.06.2026
Yes, I recommend this product
No reasons were given for this rating.
Yes, I recommend this product
No reasons were given for this rating.
Thank you for your feedback
Klaus W. 30.05.2026
Yes, I recommend this product
No reasons were given for this rating.
Yes, I recommend this product
No reasons were given for this rating.
Quality
Functionality
Thank you for your feedback
Andreas B. 25.05.2026
Yes, I recommend this product
"Since we started using the Grey Water Fresh, odors no longer travel from the greywater tank into the RV. The time between greywater disposal has also increased, and the odors are still tolerable when draining. It also prevents dirt from settling in the wastewater tank." "Seit wir den Grey Water Fresh benutzen, kommen keine Gerüche mehr aus dem Grauwassertank ins Wohnmobil. Auch die Zeit zum Grauwasser entsorgen verlängert sich und beim ablassen sind die Gerüche noch erträglich. Verhindert auch, dass sich Schmutz im Abwassertank ablagert. "
show more
Yes, I recommend this product
"Since we started using the Grey Water Fresh, odors no longer travel from the greywater tank into the RV. The time between greywater disposal has also increased, and the odors are still tolerable when draining. It also prevents dirt from settling in the wastewater tank." "Seit wir den Grey Water Fresh benutzen, kommen keine Gerüche mehr aus dem Grauwassertank ins Wohnmobil. Auch die Zeit zum Grauwasser entsorgen verlängert sich und beim ablassen sind die Gerüche noch erträglich. Verhindert auch, dass sich Schmutz im Abwassertank ablagert. "
Quality
Rating was automatically translated by DeepL. Display original text Display translation
Thank you for your feedback
Winfried P. 25.04.2026
Yes, I recommend this product
No reasons were given for this rating.
Yes, I recommend this product
No reasons were given for this rating.
Quality
Functionality
Thank you for your feedback
Sven F. 22.04.2026
Yes, I recommend this product
No reasons were given for this rating.
Yes, I recommend this product
No reasons were given for this rating.
Quality
Functionality
Thank you for your feedback

Article characteristics

Sanitary additive for the grey water tank

Prevents grey water odours from the drain and removes deposits and contamination.

Similar items

More from this brand

Your session will run in
10 : 00
Min. Sec.
Our website uses cookies
We use cookies to check the performance of our online store, to analyze and optimize your user experience and to show you relevant content on both our and third-party sites. For this to work, we need data on the use of the pages and end devices. By clicking on "Allow all", you consent to the storage of cookies on your device to improve website navigation, analyse website usage and personalize advertisements.information on cookies and your right to object
Our website uses cookies
We use cookies to check the performance of our online store, to analyze and optimize your user experience and to show you relevant content on both our and third-party sites. For this to work, we need data on the use of the pages and end devices. By clicking on "Allow all", you consent to the storage of cookies on your device to improve website navigation, analyse website usage and personalize advertisements.information on cookies and your right to object
Manage consent preferences
These cookies are necessary for the website to function and cannot be deactivated in your systems. As a rule, these cookies are only set in response to actions you take that correspond to a service request, such as setting your privacy preferences, logging in or filling out forms. You can set your browser to block these cookies or to notify you about these cookies. However, some areas of the website will then not work. These cookies do not store any personal data.
Preference cookies enable a website to remember information that changes the way the website behaves or looks, such as your preferred language or the region you are in.
Statistics cookies help website owners understand how visitors interact with websites by collecting and reporting information anonymously.
These cookies may be set through our website by our advertising partners. They may be used by these companies to build a profile of your interests and show you relevant ads on other websites. They do not directly store personal data, but are based on the unique identification of your browser and internet device. If you do not allow these cookies, you will experience less targeted advertising.