Hayward H250FDN/P Universal H-Series Vertical Vent Adapter VENT MODEL:UHXNEGVT12506 Hayward Item Code: W3900 (Previously

Hayward Item Code: W3900 (Previously PC900)

and SP2670020VSP

Hayward Item Code: UHXNEGVT14008 (Adapter Only)

if you plan to pour concrete for your patio

are oversized when compared to medium-head pool pumps

Hayward H250FDN/P Universal H-Series Vertical Vent Adapter VENT MODEL:UHXNEGVT12506 Hayward Item Code: W3900 (PreviouslyProduct Description Hayward Universal Forced Draft Negative Vertical Vent Kit Adapter for H250FDN and H250FDP. Hayward Item Code: UHXNEGVT12506 (Adapter Only) Features Genuine Hayward Vent Adapter. This vent adapter kit is to be used under negative pressure which is thru roof vertically. Hayward heaters require 1 square inch per 1,000 BTU of fresh air and combustion air supply. Please respect set backs on each side of heater when installed shed.