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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.

Aquatemp 2" MBT Uni-Nut for 2-1/4" Heater Housings - One-Piece Design

Aquatemp 2" MBT Uni-Nut for 2-1/4" Heater Housings - One-Piece Design

MSRP: $9.63
$7.49
(You save $2.14 )
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SKU:
HTP89-371-1013
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Aquatemp Products Heater Uni-Nut® - 2" MBT Threading for 2-1/4" Housings
Features patented one-piece construction engineered to eliminate split nut leakage issues on spa heaters. This hand-tightenable Uni-Nut® includes a field-replaceable, color-coded retainer system for quick servicing. Black retainers typically fit 1-5/8" tube configurations, blue retainers pair with 5.5kW heater models, and red retainers correspond to alternative wattage units. While exceptions exist, the Uni-Nut® design typically cannot substitute for split nuts due to varying flange dimensions.

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