Pentair MasterTemp 250 Air Orifice Kit (460745) airblowers Replacement front header for compatible

Replacement front header for compatible Hayward H-Series Low NOx heaters

this air switch helps support dependable maintained control and better long-term pneumatic-system reliability

Basket replacements are practical maintenance parts because the original basket often sees repeated handling and long-term exposure

while the Ultima platform preserves the original pump-family match

control panels

Pentair MasterTemp 250 Air Orifice Kit (460745) airblowers Replacement front header for compatibleBuilt for the application shown, this MasterTemp 250 Air Orifice Kit supports a cleaner, more reliable repair when the existing component is cracked, worn, heat damaged, or no longer operating correctly. It is used in the heater combustion system to help meter the air path for the correct burner configuration. Because orifice sizing affects how the heater breathes and fires, this is a precision replacement part rather than a generic fitting. Always