Hayward FDXLBPK1930 Bypass Cartridge Kit – Universal H-Series Low NOx Heaters
Part Number: FDXLBPK1930
Description
This bypass cartridge kit is designed for select Hayward Universal H-Series Low NOx pool and spa heaters. It allows the heater to bypass the standard flow path when required, maintaining proper flow and operation while extending system life.
Compatibility & Fitment
- Fits Hayward H-Series “FD” model heaters (for example H150FDN, H150FDP, H200FDN, H200FDP, H250FDN, H250FDP) as originally specified.
- Recommended replacement when the existing bypass cartridge is worn, clogged, damaged, or the heater displays flow-related errors.
- Direct replacement for systems that list part number FDXLBPK1930.
Features & Specifications
- Bypass cartridge design optimized for the hydraulic requirements of Universal H-Series Low NOx heaters.
- Precision-engineered to maintain proper flow, pressure drop, and heater performance under varying conditions.
- Includes all cartridge components required for a full bypass assembly rebuild.
Installation Notes
Turn off heater system power and shut off gas supply. Drain or isolate the water flow through the heater and relieve system pressure. Remove the existing bypass cartridge assembly, inspect housing and seals for wear or damage, install the new FDXLBPK1930 kit ensuring proper orientation and seating. Restore water flow, purge air, power up the heater, and verify proper ignition and stable operation.
Maintenance Tip
Inspect the bypass cartridge during each annual heater service. If you detect debris buildup, restricted flow, scoring or wear on cartridge elements, replace with the FDXLBPK1930 kit to avoid flow faults, heater lock-outs or reduced efficiency.
Hours Of Operation:
Monday - Friday: 8:00 am to 4:00 pm Phoenix Time
Saturday and Sunday: Closed
- Orders costing more than $300 WILL be required to have signature confirmation upon delivery.
- Handling time is typically only 1 day.
- Any item ordered after 1pm Phoenix time, may not ship same-day.
- Call us if you require expedited shipping and we can give you quotes based on your needs.
Return Policy:
- All products, except as noted below, are eligible for return up to 30 days after receipt of item.
- For returns, an RMA form must be filled out HERE or customers can call for additional help.
- Shipping costs will be deducted from all returned items.
- Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in.
- Items broken, damaged, or inoperable due to installer error will not be refunded.
- Fill out the return form or give us a call to obtain an RMA and return shipping label.
- There are no returns on the Pentair Colorsync 618031
- No returns on pool cleaners.
- No returns on opened seals and o-rings.
- No returns on capacitors.
- If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
- All products denied upon arrival at customers house WILL be charged the cost to ship.
- Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.
