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The HYDROQUIP PH301-15UV is a compact inline electric heater designed for whirlpool bath and jetted tub systems. Rated at 1.5 kilowatts and operating on 115 volts, it delivers consistent water heating in a low-profile form factor suited to tight mechanical spaces. The unit connects inline with 2-inch slip and spigot plumbing fittings on both the inlet and outlet, making integration into existing bath plumbing straightforward. A 3-foot cord length provides adequate reach in standard installation configurations. Licensed plumbers and bath system technicians are the typical installers for this type of inline heating component.
The PH301-15UV is intended for residential whirlpool bath and jetted tub applications. Its compact dimensions - 10.71 inches by 6.10 inches by 4.61 inches - allow it to fit in confined cabinet or apron spaces beneath or alongside the tub deck. The 2-inch slip and spigot connection sizes are standard for whirlpool bath plumbing, making this a direct-fit option for systems already plumbed at that diameter. It is not rated for outdoor spa or pool use based on available product data.
Designed as an OEM-style inline heater replacement for residential whirlpool bath and jetted tub systems plumbed with 2-inch slip connections.
Installation should be performed by a licensed plumber familiar with jetted bath systems and applicable local plumbing codes. Shut off all electrical power to the whirlpool bath circuit at the breaker before beginning any work, and ensure the system is fully depressurized and drained prior to disconnecting or connecting plumbing fittings. Verify that the supply circuit matches the 115-volt rating of the heater before energizing. Do not operate the heater dry - confirm water flow is established through the inline assembly before restoring power.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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