Home » Octomarine Products » Filters » Sea Recovery / HRO MK1 Pre-Filter Sea Recovery / HRO MK1 Pre-Filter Mk1 Sea recovery and HRO water Maker Pre-filter. As Agents of both HRO and Sea Recovery we are able to offer these filters at list price. DetailsSpecifications Mk1 Sea recovery and HRO water Maker Pre-filter, The housing for this filter is a white with a white threaded lid. Octo Marine Code SRC (*micron*) Brand Codes No Manufacturer Octo Marine Compatible HRO, Sea Recovery Micron Sizes 5,20 Sizes 11 7/8″ x 6 3/16″,1 5/8″ I/O (302x157mm, 40.5mm I/O) Options No Product Uses No Contact Us About this Product Similar Products Sea Recovery/ HRO MK3 Pre-FilterFilters, Particle, Pleated Sea Recovery / HRO MK1 Pre-FilterFilters, Particle, Pleated 9 3/4″ X 2 1/2″ Pleated FilterFilters, Particle, Pleated 20″ X 4 1/2″ Pleated Particle FilterFilters, Particle, Pleated 20″ X 2 1/2″ Pleated Particle FilterFilters, Particle, Pleated 10″ X 4 1/2″ Pleated Particle FilterFilters, Particle, Pleated Product Your Name Email Address Phone Comments 8 + 6 = SEND