Dutch Filtration designs and manufactures filter housings and systems for the food industry. We just finished a 3inch strainer rated for 30bar and fitted with a 3000 micron filter. The fabricated housing has the unique Rudi quick opening closure (QOC) for quick and safe change out of the basket filter. This construction is much more robust than casted strainers. The traditional casted strainer will often crack by often opening en closing the lid.