> For the complete documentation index, see [llms.txt](https://docs.synergyreef.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.synergyreef.com/installation-manuals/rm-sump-installation/rm72-sump-setup/installing-the-redsea-reefmat-1200-into-the-sump.md). # Installing the RedSea ReefMat 1200 into the sump {% hint style="warning" %} \*\*\****You can use either 1 or 2 RM1200 roller mats in these sumps. The flow rate into the sump will determine whether you need 1 or 2 roller mats. Each SK5000 is rated for 1200 GPH MAX, so 2 will be 2400 GPH MAX. If using only 1 Roller mat, you can use 1 filter sock as well. For the quietest operation we recommend keeping the flow below the SK5000's Maximum flow rate.*** {% endhint %} #### Basic connection of the RM1200 to the sump. * You can use the corrugated black pipe that is included with the RM1200 and the adapters that Redsea has included. But be aware that you need to use a 1.5" to 1" PVC adapter for this to work as they only include a 1" PVC connection for the stock plumbing. Determine how you drain into your sump. There are 2 ways to connect the RM1200 to each section in the RM72 Sump. 1. Single drain into 1 Reefmat [click](/installation-manuals/rm-sump-installation/rm44-sump-setup/single-1-drain-into-1-reefmat-1200.md)[ here](/installation-manuals/rm-sump-installation/rm44-sump-setup/single-1-drain-into-1-reefmat-1200.md) 2. Dual Drains into 1 Reefmat [click here](/installation-manuals/rm-sump-installation/rm44-sump-setup/dual-2-drains-into-1-reefmat-1200.md) ##

FIGURE A.1 - RM1200 shown with 1.5" Adapter installed on input.