Clack 1" D-Series In/Out Control Valve With Vent Trap

Bypass: No
Male Tails: No
Riser Tube: No
Sale price$62.99


The 1" Clack In/Out tank head is a durable, all-plastic unit that handles up to 3.2 GPM and has an accessible refillable port for media replacement. It's designed for downflow filter applications or up flow pH neutralization adapting to standard plumbing connections with 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. The vent port can be drilled out to accept an air relief valve, and the 1" head is fully ported to provide maximum flow rates. The parallel inlet and outlet ports quickly adapt to standard plumbing or Clack's all-plastic, four-way bypass valve.


  • 3.2 GPM
  • Refillable port for media replacement
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