Aquarium Filter KIT- 36x15x15--100 page instructions-Refugium, Sump This is a 36x15x15 Refugium Filter KIT. All pieces are Domestic High Quality Acrylic. All pieces are cut and jointed to quality specifications. 100 page book is included that teaches acrylic fabrication- Specifically for this filter. Also included for FREE is 3 hour video series. Save 50-90% the cost of a built unit.