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SpaShopper makes it easy to find quality hot tub and spa replacement parts without the frustration. From spa pumps and heaters to control boards, jets, filters, and plumbing components, we stock parts that fit a wide range of popular spa brands. Whether you’re fixing a heating issue, replacing a worn pump, or upgrading aging components, SpaShopper helps you get your spa running again quickly and confidently.

Waterway 2" fbt to 2-1/2" mbt Pump Union Adapter (O-Ring Not Included)

SpaShopper

MSRP: $19.99
$14.99
(You save $5.00 )
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SKU:
HTP89-270-1453
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This Waterway adapter fitting converts a 2" threaded wet end connection (approximately 3" edge to edge) to accommodate a 2-1/2" inside threaded pump union (approximately 3-5/8" ID). Essential for connecting mismatched pump and plumbing thread sizes in your hot tub or spa system.

Specifications:

  • First Plumbing Connection Size: 2"
  • First Plumbing Connection Type: Female Buttress Thread (fbt)
  • Second Plumbing Connection Size: 2-1/2"
  • Second Plumbing Connection Type: Male Buttress Thread (mbt)
  • Union Fitting Part Type: Adapter
  • Manufacturer: Waterway
  • O-Ring: Not included (requires separate O-Ring Heater or Pump Union 2-3/8" ID 1/8")

Perfect for spa technicians and DIY hot tub owners needing to bridge different union sizes during pump installation or replacement.