50/90 Micron Single Stage RA6000015 - 1"  90 micron HYDRA SELF-CLEANING FILTER KIT RA6000020 - 3/4" 50 micron HYDRA SELF-CLEANING FILTER KIT This is a self cleaning filter, for the treatment of rainwater.This comprises of  a self cleaning pre-wash filter with a stainless steel net with 50/90 micron filtration.These Water Filtering Kits come complete with a full set of accessories including; wall bracket, opening spanner, discharge hose-holder, drain funnel and a complete discharge valve kit. BENEFITS Non-toxic materials, suitable for drinking waterSafer and more practical with single-block headEasier and faster cleaning TECHNICAL FEATURES Rain-water filter for water recycling and treatment, with self-cleaning prefilterPre-filtration cartridges: RAHBrass or plastic thread BSP or NPTHead: reinforced polypropyleneO-Rings: EDPMBreather-valve: body stainless-steel, o-ring EPDMBowl: PETDrain valve for manual cleaningAnti-pollution from reflux drain system IN/OUT: 3/4" or 1" PortsThrea