SPD Catch tank in-tank fuel pumps SPD high-end catch tank that has milled parts out of one piece. The entire construction is bolted with o-rings in viton for maximum operational reliability for both gasoline and ethanol. The tank has no welds that can crack and start leaking. It is the same catch tank for both internal and external pumps. There are extra accessories in the internal catch tank that enable the installation of internal pumps. The construction of the bracket for the pumps allows an easy mounting of all internal pumps which are round and have a diameter of 40-60mm which is the market standard. The pump mount is very stable and is also adjustable in height so you can easily get a good installation and push the pumps down to the bottom of the catch tank regardless of whether you use Walbro, AEM, Bosch, Deatschwerks pumps etc. This catch tank also supports only up to 3 60mm pumps! A catch tank that is equally suitable for those with less power and for those with very high powe