Pentair Junction Box Brass Base w/ Polycarbonate Cover - 1/2 in. ports | 78310500 Unicel When replacing the diffuser assembly

When replacing the diffuser assembly

For high bather loads

this cartridge delivers reliable water clarity and extended service life in a tight 14 7/8" profile — purpose-built for the spa systems it was designed to replace

Female/Female Blue Hose Connector Compatibility is based on Pentair parts documentation and available OEM records

This venturi jet is designed to use with Pentair pool specialty fittings

Pentair Junction Box Brass Base w/ Polycarbonate Cover - 1/2 in. ports | 78310500 Unicel When replacing the diffuser assemblyThis 1 2 inch junction box port is designed to use with Pentair pool and spa light system. Polycarbonate cover with brass base. Measures 11 inch length by 13 inch height by 9 inch width.