Hayward H-Series/ID/Low NOx/ED2 Header O-Ring Kit (FDXLFOR1930) infusionpool Reference replacement part number 25-4041-BI-TI

Reference replacement part number 25-4041-BI-TI when comparing against existing equipment or service documentation

The Tecmark bath heater pressure switch is designed for compatible TBS-3000A applications where proper pressure sensing is part of safe and dependable heater operation

Part of a best-selling line with strong ongoing parts support

this OEM vacuum plate is a useful choice for keeping maintenance equipment connections working the way they should

The 1/2" size makes this especially relevant in smaller plumbing circuits or specialized spa applications where control precision matters

Hayward H-Series/ID/Low NOx/ED2 Header O-Ring Kit (FDXLFOR1930) infusionpool Reference replacement part number 25-4041-BI-TIThe Hayward header O ring kit is designed for compatible H Series, induced draft, Low NOx, and ED2 heater applications where the header sealing components need replacement. A kit like this is useful because it helps restore sealing at critical heater header connections, supporting cleaner assembly integrity and more dependable operation. This replacement is especially useful when the original O rings are flattened, brittle, cracked, or leaking after