Hayward Barb Hose Connectors (Set of 2) for ProSeries Sand Filters | SPX1091Z2PAK2 C4325 MasterTemp heaters built before October

MasterTemp heaters built before October 2012 use an earlier header design — this kit is specified for the New Header Design (October 2012 to present) on those models

Diffuser O-ring

Because this is a solvent-weld socket connection

Total Chlorine

Hayward Barb Hose Connectors (Set of 2) for ProSeries Sand Filters | SPX1091Z2PAK2 C4325 MasterTemp heaters built before OctoberThe Hayward Barb Hose Connector (SPX1091Z2PAK2) is the OEM replacement barb hose fitting for Hayward ProSeries sand filters, sold as a set of two connectors. These barb hose connectors secure hose connections at the filter, maintaining a leak free seal at the point where flexible hose attaches to the filter body. Replacing worn or cracked connectors restores a secure, watertight connection and prevents pressure loss at the hose junction.