Hayward HAXNUT1930 H-Series ED1 and ED2 union nutHayward ED1/ED2 Union Nut, 2 Pack, HAXNUT1930 In stock$3399
Hayward HAXNUT1930 H-Series ED1 and ED2 union nut
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Hayward ED1/ED2 Union Nut, 2 Pack, HAXNUT1930

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$3399
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Quick overview

  • Two per pack Supplied as a 2 pack, which covers both sides of the heater.
  • Genuine Hayward The factory part, HAXNUT1930.
  • ED1 and ED2 Fits the Millivolt and Electronic ED1 style and the Electronic ED2 style heaters.
  • H150 through H400 Also fits the H150 to H400 millivolt and electronic ignition pool and spa heaters.
  • Induced draft models Listed for Hayward induced draft heaters as well.
  • Plumbing connection The union nut is what holds the heater plumbing connection together, so a cracked one has to be replaced before the heater runs.
Full description and specifications ↓

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Product details

The Hayward HAXNUT1930 is the union nut set for the H-Series pool heater plumbing connection, supplied as a 2 pack. Hayward lists it as Union Nuts (Set of 2).

What it does

On H-Series heaters with a plastic header, the CPVC pipe nipples that accept 2 inch or 2-1/2 inch pipe are secured to the header with plastic union nuts, sealed by rubber gaskets. Hayward tells you to fit and tighten the union nuts before gluing the fittings to the pipe, and a cracked or stripped nut has to be replaced before the heater is plumbed back in.

What it fits

The set is listed for Hayward induced draft heaters, the Electronic ED2 style, the Millivolt and Electronic ED1 style, and the H150 through H400 millivolt and electronic ignition pool and spa heaters.

Why two

A heater has a union at the inlet and one at the outlet, and both nuts age under the same heat and water chemistry. The pack covers both sides.

Specifications
Brand Hayward
Manufacturer part number HAXNUT1930
UPC 610377326278
Part type Pool Heater Part
Type Union nut
Quantity 2 pack
Fits Hayward Induced Draft, Electronic ED2 style, Millivolt/Electronic ED1 style heaters, and H150 to H400 Millivolt/Electronic Ignition pool and spa heaters
Shipping weight 0.4 lb
Ships Parcel

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Questions and answers

What people ask about this product, answered by our pool techs.

How many nuts come in the pack?
Two. It is supplied as a 2 pack.
Which heaters does it fit?
Hayward induced draft heaters, Electronic ED2 style, Millivolt and Electronic ED1 style, and the H150 to H400 millivolt and electronic ignition pool and spa heaters.
Is it a genuine Hayward part?
Yes. It is Hayward part HAXNUT1930.
Do I need to replace both at once?
Not necessarily, but the pack contains two, and nuts of the same age tend to fail around the same time.
Ask your own question