Hayward UHXPOSHZ12504 4" Positive Pressure Indoor Vent Adapter for Universal H-Series H250 Pool Heaters 15' x 54" Available in various sleek colors—including

Available in various sleek colors—including white

this above-ground pool delivers on both function and style

This cover blocks light and debris

and window sills with ease

Hayward UHXPOSHZ12504 4" Positive Pressure Indoor Vent Adapter for Universal H-Series H250 Pool Heaters 15' x 54" Available in various sleek colors—includingThe Hayward UHXPOSHZ12504 is a 4" positive pressure vent adapter built specifically for indoor use with Universal H Series H250 pool heaters. Designed to support efficient venting in pressurized systems, this component ensures safe exhaust flow in residential and commercial settings. Its compact 4 inch diameter helps manage airflow in smaller or tighter mechanical rooms without compromising on safety or compliance. Constructed from corrosion resistant