If you are using RWO GmbH oily water separators, you may be wondering why the second stage activated carbon cartridges look different from the ones you used to order. In this blog post, we will explain the reason behind this design change and how it affects your equipment. The design change applies to all models of RWO oily water separator SKIT S DEB and OWS-COM, of all sizes.
The OWS adsorber cartridges are essential for removing oil and other contaminants from the water that passes through the oily water separators. The manufacturer decided to upgrade the design of the OWS adsorber cartridges to enhance the quality and performance of the oily water separators. The new design OWS adsorber cartridges have some advantages over the old ones, such as:
- They come with free sealing plugs with O-ring and head plates, which improve the sealing and prevent leakage.
- They do not require cover fittings or connection fittings, which simplify the installation and reduce the maintenance costs. (Connection fittings are used in RWO GmbH's Oily Water Separators size 5.0 and above)
- They have a slightly different installation procedure, which is easy to follow and ensures optimal operation. (Installation drawing will be provided with purchase of this genuine part)
The best part is that the price for this new design part remains the same as of 2023, despite the addition of free parts. That means you can enjoy the benefits of the new design without paying extra.
The old design OWS adsorber cartridges will be gradually phased out, but they are still compatible with your equipment if you have them in stock. You can use them until they need to be replaced.
We hope this blog post has answered your questions about the design change of the OWS adsorber cartridges. If you have any further inquiries, please feel free to contact us. We are always happy to assist you with your oily water separator needs.
N&P Maritime has been RWO GmbH's Singapore partner since 2016, supplying genuine RWO spare parts and genuine Deckma OMD parts sourced through RWO. Since October 2025 we are a supply-only company and do not provide onboard service.
N&P Maritime keeps stock of common RWO/Deckma consumable spare parts in Singapore, such as coalescer filters, adsorber polishers, zinc anodes, gauges and desiccators.
We reply to quotation requests within 1 business day and deliver in-stock parts within 3 business days. There is no minimum order requirement.
Contact us at sales@npmarine.sg and/or +65 97684033 if you have any questions.
*RWO GmbH has been supplying future-proof made in Germany solutions for marine water treatment for over 45 years. Their product portfolio includes equipment for the treatment of drinking and process water as well as systems for pollution prevention such as oily water separators or sewage treatment plants. RWO is a technological leader in the field of oil/water-separation with over 16,000 units delivered worldwide. More than 40 global sales and service stations.
FAQ
Why do RWO OWS second stage activated carbon cartridges look different? The cartridges look different because RWO GmbH upgraded the OWS adsorber cartridge design to enhance oily water separator quality and performance. The change applies to all SKIT S DEB and OWS-COM models and sizes. New cartridges include sealing plugs with O-ring and head plates, and do not require cover or connection fittings.
Are old-design RWO OWS adsorber cartridges still compatible with my separator? Yes, old-design RWO OWS adsorber cartridges remain compatible with your separator if you have them in stock. RWO is gradually phasing out the old design, but you can continue using existing stock until the cartridges need replacement. New-design cartridges are available for SKIT S DEB and OWS-COM models of all sizes.
What is different about installing the new RWO OWS adsorber cartridges? The new-design cartridges have a slightly different installation procedure, which is easy to follow and ensures optimal operation. An installation drawing is provided with purchase of this genuine part. They come with sealing plugs with O-ring and head plates, and do not require cover fittings or connection fittings; connection fittings are used in RWO OWS size 5.0 and above.
Which RWO OWS models does the adsorber cartridge design change affect? The design change applies to all models of RWO oily water separator SKIT S DEB and OWS-COM, of all sizes. It affects the second-stage activated carbon cartridges, also called OWS adsorber cartridges. The new design is intended to enhance separator quality and performance and includes sealing plugs with O-ring and head plates.
Can N&P Maritime supply the new-design RWO OWS adsorber cartridges in Singapore? Yes. N&P Maritime is RWO GmbH's Singapore partner since 2016 and supplies genuine RWO OWS and sewage parts, plus Deckma OMD parts sourced through RWO. Quotation requests are answered within 1 business day, and in-stock parts are delivered within 3 business days. N&P Maritime is supply-only.