Hayward H-Series Heater Flange Pipe Nipples, Set of 2 | HAXNIP1930
The Hayward HAXNIP1930 Flange Pipe Nipple Set is a genuine OEM replacement component designed for compatible Hayward H-Series gas swimming pool and spa heaters. This set includes two CPVC flange pipe nipples used to connect the heater's water inlet and outlet to the pool plumbing system.
Manufactured to Hayward's original equipment specifications, these replacement connectors provide proper fitment with compatible heater headers, union nuts, and sealing O-rings. The HAXNIP1930 set is ideal for replacing cracked, damaged, or deteriorated original heater plumbing connections.
Product Features
- Genuine Hayward OEM: Original manufacturer replacement plumbing connectors.
- Set of Two: Includes two flange pipe nipples for compatible heater inlet and outlet connections.
- CPVC Construction: Heat-resistant material designed for specified pool heater plumbing applications.
- H-Series Compatibility: Fits select Hayward ED1, ED2, millivolt, electronic ignition, and induced-draft heaters.
- Flanged Connection: Designed to work with compatible heater union nuts and sealing O-rings.
- Replacement Application: Ideal for repairing damaged or leaking heater plumbing connectors.
- OEM Fitment: Manufactured for specified Hayward heater header connections.
Product Specifications
- Manufacturer: Hayward Pool Products
- Manufacturer Part Number: HAXNIP1930
- Product Type: Heater Flange Pipe Nipple Set
- Material: CPVC
- Color: White / Off-White
- Application: Pool and Spa Heater Water Connections
- Compatible Heater Series: Hayward H-Series
- Compatible Heater Styles: ED1, ED2, Millivolt, Electronic Ignition, and Select Induced Draft
- UPC: 610377326261
- Package Quantity: 2 Flange Pipe Nipples
Compatible Hayward Pool Heaters
The Hayward HAXNIP1930 is designed for select H-Series heaters, including compatible configurations of the following models:
- Hayward H150
- Hayward H200
- Hayward H210
- Hayward H250
- Hayward H300
- Hayward H350
- Hayward H400
- Hayward H-Series ED1 Electronic Ignition Heaters
- Hayward H-Series ED2 Electronic Ignition Heaters
- Hayward H-Series Millivolt Heaters
- Hayward H-Series Induced Draft Heaters
Compatibility Notice: Not every Hayward heater uses the same plumbing connectors. Verify your heater's exact model, generation, and original part number before ordering. This set should not be assumed compatible with newer Universal H-Series FD heater assemblies.
What Do the Flange Pipe Nipples Do?
The flange pipe nipples connect the swimming pool plumbing to the heater's water header. Each connector provides a connection point for the heater union assembly, allowing water to flow into and out of the heat exchanger.
The flanged design works with compatible union nuts and sealing O-rings to provide a removable plumbing connection for heater installation, maintenance, and replacement.
When to Replace Your Heater Pipe Nipples
Heater plumbing connectors may become damaged from age, improper installation, excessive tightening, freezing conditions, or mechanical stress.
- Cracked or broken flange pipe nipples
- Water leaks around the heater inlet or outlet
- Damaged or distorted flange surfaces
- Broken connections discovered during heater servicing
- Physical damage caused by freezing or plumbing movement
- Replacement of deteriorated original heater connectors
Important: Water leaking around a heater union may also indicate a damaged O-ring, loose union nut, or damaged header connection. Inspect all related components before replacing the pipe nipples.
Related Hayward H-Series Heater Plumbing Parts
Complete your heater plumbing repair with related replacement components available from Aqua Pool Supply.
- Hayward HAXNNO1930 – H-Series Heater Plumbing Kit – Related heater plumbing connection kit for compatible H-Series heater installations.
- Hayward HAXHOR1930 – H-Series Heater Header O-Ring – Genuine replacement sealing component for compatible H-Series heater header assemblies.
- Hayward HAXPSA1930 – Heater Water Pressure Switch Assembly – Replacement pressure switch assembly for specified Hayward H-Series gas heaters.
Additional Hayward H-Series Heater Parts
Find additional replacement parts for your Hayward heater:
- Hayward HAXNUT1930 – Heater Union Nuts, Set of 2
- Hayward HAXFOR1930 – Heater Flange O-Rings
- Browse Hayward H-Series Heater Replacement Parts
Installation Information
- Turn off the pool heater and circulation pump.
- Disconnect electrical power and allow the heater to cool completely.
- Isolate the heater from the pool plumbing and relieve water pressure.
- Remove the existing union connections according to Hayward's service instructions.
- Inspect the union nuts, O-rings, and heater header connections for damage.
- Verify that the replacement HAXNIP1930 connectors match the original parts.
- Install the new flange pipe nipples using the manufacturer-approved procedure.
- Replace damaged or deteriorated sealing O-rings as needed.
- Reconnect the plumbing without placing excessive stress on the heater connections.
- Restore circulation and inspect the connections for leaks before operating the heater.
Installation Recommendation: Use the correct Hayward union nuts and flange O-rings for the specific heater configuration. Avoid overtightening plastic plumbing components, which may cause cracking or damage.
Package Contents
Includes: Two (2) Genuine Hayward HAXNIP1930 CPVC Flange Pipe Nipples.
Important: This listing is for the two flange pipe nipples only. Union nuts, flange O-rings, heater headers, and additional plumbing components are sold separately unless specifically included by the manufacturer.
Compatibility: Designed for select Hayward H-Series ED1, ED2, millivolt, electronic ignition, and induced-draft pool heaters. Confirm your heater model and original plumbing connector part number before ordering.
Safety: Pool heaters contain electrical, gas, hot-water, and pressure hazards. Allow equipment to cool, disconnect power, and relieve water pressure before servicing. Follow all Hayward installation and maintenance instructions.
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.



