ED1/ED2 Header O-Ring fitting-type_Bushing set the sensor to the

set the sensor to the proper insertion depth into the process flow

This is a PVC Schedule 80 Union with Slip x FIPT connections measuring 1-1/4 inch

maintenance is remarkably straightforward

Inline thermometer for solar applications

Connects to CAT Controllers for reporting and automation

ED1/ED2 Header O-Ring fitting-type_Bushing set the sensor to theThis is a Hayward Header O Ring for H Series Induced Draft, Low NOx Induced Draft, Electronic ED2 Style, Millivolt Electronic ED1 Style Pool Heaters. This Header O Ring goes on the following models: H150, H200 H210 H250, H300 H350, H400 Millivolt Electronic Ignition Pool and Spa Hot Tub Heaters and H250IDL2, H350IDL2, H400IDL2 Pool and Spa Hot Tub Heaters.