D1400 In-Out Head, 1" NPT
The 1191/1190FP 1" In-Out Heads are designed for down-flow filter applications or up-flow pH neutralization.
Molded out of a rugged thermoplastic resin, the 1191 Head features a 1/4" FPT air vent port which can be drilled out to accept an air relief valve. The 1" Head is fully ported to provide maximum flow rates. The 1191 incorporates a standard 2-1/2" tank connection and features parallel inlet and outlet ports to easily adapt to standard plumbing connections or Clack's all-plastic, four-way bypass valve. A full line of fitting plumbing connection kits are available.
