Crystal Reef Aquatics Red Sea Reefer replacement reef sumps are designed as a direct replacement for sumps that come stock in the Reefer series. Designed per our clients requests with a greater emphasis on a Refugium area while still keeping the required space for an appropriate skimmer. Our sumps are designed to be feature rich and have all the accessories built in for a truly Plug and Play experience. Our Sump systems are all designed and built in the USA using top of the line Plexiglass products. With over 30 years experience, our attention to detail and construction is second to none. As with all of our sumps, all features are included in the price. Please browse our models and feel free to contact us at anytime to discuss.