(Open Box) Hayward H400FDN/P Universal H-Series Vertical Vent Adapter VENT MODEL:UHXNEGVT14008 For very cloudy water treatment:

For very cloudy water treatment: Add 250 mL of CLARITATM per 10

011067: IntelliFlo VSF 1

Raypak Item Code: 017159F

Thus means more air over the coil which translates to greater efficiency all while being whisper quiet

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(Open Box) Hayward H400FDN/P Universal H-Series Vertical Vent Adapter VENT MODEL:UHXNEGVT14008 For very cloudy water treatment:Product Description Hayward Universal Forced Draft Negative Vertical Vent Kit Adapter for H400FDN and H400FDP. Hayward Item Code: UHXNEGVT14008 (Adapter Only) Open Box Customer Return Incorrect Vent Kit Purchased Contains ALL Parts Venting will have Scuffs and Scratches 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