... pcs=20pcs 36w.7.Ceiling pieces: Spacer& filter channel are powder coated cold plate, support mesh ... water curtain filter machine; 14. Purification System: Primary filter bag, ceiling filter 600G purification, glass silk filter, water curtain filter.15. ... 12.Purification System: Primary filter bag, ceiling filter 600G purification, glass silk filter, water curtain filter.13.Heating system: Equipped ...