Hayward FDXLUNK1930A Union Kit – Replacement Plumbing Unions for Universal H-Series Heaters

Key Features

• OEM Replacement Part: Genuine Hayward part for use with Universal H-Series pool and spa heaters.
• Complete Union Set: Includes both male and female fittings for full water connection replacement.
• Easy Threaded Installation: Allows for quick removal and reconnection of plumbing without cutting pipes.
• High-Temperature Polymer Construction: Built to withstand heater operating temperatures and chemical exposure.
• Perfect Fit for Hayward Models: Designed specifically for Hayward Universal H-Series gas heaters (models H150FD – H400FD).

Product Overview

The Hayward FDXLUNK1930A Union Kit is the factory original plumbing union replacement for Hayward Universal H-Series pool heaters. These threaded fittings connect your pool's PVC plumbing to the inlet and outlet ports of the heater. Over time, unions may wear, crack, or leak — replacing them ensures a watertight, secure connection and allows for future maintenance or heater replacement without cutting your plumbing system.

Specifications

• Manufacturer: Hayward
• Part Number: FDXLUNK1930A
• Compatible With: Universal H-Series Heaters (H150FD, H200FD, H250FD, H300FD, H350FD, H400FD)
• Connection Size: 2" threaded union fittings
• Material: High-temp polymer
• Application: Water inlet and outlet pipe connections

What’s Included

• 2x Threaded Union Fittings (Male & Female)
• O-rings and sealing components
• *Heater and pipes not included

Why Buy From Best Buy Pool Supply?

• Authorized Hayward Dealer
• Fast shipping
• Expert support to help verify fit for your heater model

Shipping & Returns

• Shipping: Ships within 1–2 business days
• Returns: 30-day return policy on unused/unopened items

Not Sure If This Union Kit Fits Your Heater?

Contact our team at (800) 877-1268 or message us online with your heater’s model number. We’ll help confirm compatibility before you order.