This 1" Clack In-Out tank head with easy refillable port for media replacement. These Clack In-Out Tank Heads are designed for downflow filter applications or upflow pH neutralization.
This Media Loading Tank Head is fully ported to provide maximum flow rates. Adapts to standard plumbing connections easily, and has Clack's all-plastic bypass valve. This head has a removable fill port cap to allow easy access to the media bed and an upper distributor basket providing access to the top of the riser pipe, allowing water to be drained from the tank when replacing media.