Hayward SPX0504Z7 500W, 120V, Bulb R-40
Replacement Hayward SPX0504Z7 500W, 120V, Bulb R-40. Used in units manufactured after 1970.
- Hayward Starlite Series Lights - SP0540, SP0541, SP0542, SP0543 (500W)
- Hayward Lights - SP0504
Can be used with other models if the part number is listed in the product's manual