Hayward FDXLGSV0002 Propane Gas Valve – Universal H-Series Pool & Spa Heater Replacement

Part # FDXLGSV0002 — a factory replacement propane gas valve designed for use with Hayward Universal H-Series Low-NOx pool and spa heaters. This valve regulates the flow of propane to the heater’s burner system to ensure safe, efficient ignition and combustion.

Key Features

OEM-spec gas valve compatible with propane-fired Hayward H-Series heater models (e.g. H150FDP, H200FDP, H250FDP, H300FDP, H350FDP, H400FDP).
Precisely regulates propane flow for stable flame, proper burner operation, and efficient heat output.
Durable construction designed to handle typical pool-heater gas pressures and environmental exposure.
Direct-replacement part — drops in place of the original valve without major modifications.
Compatible with all control and safety systems originally designed for the heater (pressure switch, ignition module, venting, etc.).

Typical Applications

Use this valve when the existing gas valve in a propane H-Series heater fails — for example if it leaks, fails to open or close properly, or causes ignition issues. It’s also commonly replaced during maintenance or refurbishing to ensure continued safe operation.

Installation & Compatibility Notes

Before servicing, shut off the propane supply, turn off all power to the heater, and allow the unit to cool. Remove the old gas valve carefully, noting orientation and gas line connections. Install the new FDXLGSV0002 valve, reconnect gas lines and electrical connections, and pressure-test the system per manufacturer instructions to confirm there are no leaks. After startup, monitor ignition, burn quality, and heater operation to verify correct installation.

Why Choose This Gas Valve?

Choosing the genuine FDXLGSV0002 ensures proper fit, flow characteristics, and safety compliance for your H-Series heater. Using the correct valve protects the heater’s performance, avoids potential leaks or ignition problems, and helps extend the life of the unit.

Maintenance Tips

Inspect gas valve and surrounding components yearly for signs of leaks, corrosion or wear.
Check gas pressure and regulator settings per heater manual to ensure safe operation.
When cleaning or servicing the heater, avoid disturbing valve seals — retorque fittings per spec if loosened.
If the heater will be out of service for an extended period, shut off propane at the supply valve and relieve line pressure to safeguard internal components.

Questions about returns? View our return policy.

Hours Of Operation:

Monday - Friday: 7:00 am to 5:00 pm Phoenix Time

Saturday: 8:00 am to 2:00 pm

Sunday: Closed

We do not ship on Saturday or Sunday.
Orders totaling more than $300 will require signature confirmation upon delivery.
We process and prepare orders for shipment within 1 business day. Please note that many other pool supply retailers require 3–5 days of handling time before shipping.
Orders placed after 1:00 pm Phoenix Time may not be eligible for same-day shipment.
Expedited shipping options are available at checkout.

Return Policy:

Products that are received damaged will receive a refund in store credit.
Most products are eligible for return within 30 days of receipt, except where noted below.
To initiate a return, please complete an RMA form prior to sending your item back.
Original shipping costs are non-refundable and will be deducted from the return credit.
Items returned missing accessories or original packaging, or that are not in the same condition as received, may be subject to a restocking fee of up to 100% depending on the condition of the item upon return.
Some returns will be charged an automatic 15% restocking fee.
We are unable to issue refunds for items that have been damaged or rendered inoperable due to installer error.
Please complete the return form to receive your RMA number and return shipping label.
Chemical products are not eligible for return under any circumstances.
The Pentair Colorsync 618031 is not eligible for return.
Pool cleaners are not eligible for return.
Opened seals and o-rings are not eligible for return.
Capacitors are not eligible for return.
Plastic popup tools are not eligible for return.
Automation components and circuit boards are not eligible for return.
If a light is returned due to a reported malfunction and is found to be fully operational upon testing, return shipping costs and a restocking fee will be deducted from the refund.
Orders refused at the time of delivery will be subject to the original shipping costs being deducted from the refund.