Of course I can't say anything about the longevity so soon after the purchase. Since this review includes 4 different item numbers, I must first say that I bought item 32598, the 5 cbm/min 24V fan. But as I only found out now when replacing the old one, the smaller 3 cbm from Plastimo was originally installed on my ship by the shipyard, which can also be seen in the picture. That would be item 10260 and I would definitely recommend it as it lasted over 3000 hours on me. If I had known that beforehand, I probably would have gone for the smaller one again. Since I also saw the smaller one from Plastimo from other suppliers and it was listed there as not suitable for long-term use, I decided on the larger one after all. The differences: 10260 is from Plastimo, the rating plate says 24V 2A. The hose connection is not 75mm but 70mm. Performance according to SVB 3cbm/min, according to Plastimo 4cbm/min. 32598 is from Vetus (comes from Canada) has according to the enclosed data sheet 24V 4A and 4800 l/min output, the hose connection is not 75mm but 76mm (3"). Interestingly, the hoses I installed were 76mm and were on the 70mm with the hose clamps squeezed together. So the hoses fitted the larger fan snugly. I had to drill new holes for the flange on the bulkhead. The larger fan runs quieter from the humming noise, but you can now clearly hear the hiss of the airflow. It wasn't audible before , so the air throughput seems to be significantly higher than expected from the data sheet. The design is also more solid than with the Plastimo, but the motor is externally attached, with the Plastimo it is protected in a plastic housing. The radio interference suppression is much more complex with the Vetus , with 2 PI elements made of ferrite chokes and capacitors, compared to only one capacitor in the Plastimo Whether all that justifies the 2.5-fold price everyone has to judge for themselves. After a little over 3000 hours of operation, the Plastimo sometimes had start-up difficulties. The dissection showed that the carbon was almost completely gone, the carbon dust had stuck to the still good bearings. I think the price is great and that's why I would actually give the 'small' 5 stars. The big one has yet to prove itself, but I think the significantly higher airflow will keep the engine bay cooler and that will benefit some other aggregates like the inverter.
