H-Series ED1/ED2 Pressure Switch Assembly fitting-type_Coupling Two filter elements are required

Two filter elements are required

The water safety rope is made from 3/8 inch floating line

and subfreezing temps in the winter

This is a Hayward SPX3400Z1ECM 2

The cylinder on the LIFE Oxygen Pac is easily refillable

H-Series ED1/ED2 Pressure Switch Assembly fitting-type_Coupling Two filter elements are requiredThis is a replacement Hayward Pressure Switch Adapter for H Series Induced Draft, Low Nox Induced Draft, Electronic ED2 Style, Millivolt Electronic ED1 Style Heaters, H250IDL2 H350IDL2 H400IDL2 Pool and Spa Hot Tub Heaters and H150 H200 H210 H250 H300 H350 H400 Millivolt Electronic Ignition Pool and Spa Hot Tub Heaters.