
Quick overview
- Slip on both sides Both halves take 1-1/2 inch pipe in a slip socket, solvent welded in place.
- Service without cutting A union in the run means the next repair is a hand loosened nut instead of a saw.
- Waterway part 400-4000 The factory union assembly, supplied complete.
- Standard 1-1/2 inch size The most common pipe size on residential pool and spa equipment pads.
- Complete assembly Comes as both halves plus the nut, not as a loose half.
- Equipment pad staple Useful anywhere you want a removable joint ahead of a pump, filter or heater.
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Product details
The Waterway 400-4000 is a 1-1/2 inch union assembly with a slip socket on each side. Both halves solvent weld onto standard 1-1/2 inch pipe, and the nut in the middle joins them.
Why a union earns its place
Plumbing that is glued end to end has to be cut apart every time a pump, filter or heater comes off the pad. A union puts a deliberate break in the run, held by a nut you can loosen by hand, so the same repair takes minutes and costs nothing in pipe.
Fitting
This is the slip version, so neither end is threaded. Dry fit the pipe first, then solvent weld each half in the usual way and hand tighten the nut. Do not put a wrench on it.
| Brand | Waterway |
|---|---|
| Manufacturer part number | 400-4000 |
| UPC | 806105081179 |
| Type | Union assembly |
| Size | 1-1/2 inch |
| Connection | Slip x slip |
| Shipping weight | 0.38 lb |
| Ships | Parcel |
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