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The Charcoal Flat Pillow is a well-made pillow that fits securely into many hot tub brands.

The sensor assembly is specifically designed to go with Down East Spas and Legend Series Master Spas (select 1996-1999 models). It is a replacement for Balboa Dual Sensor Assembly with Temperature and Hi-Limit Sensor. Compatible with all Balboa systems that use this type of sensor.

Looking for a macro flat filter for a Legend Series™ spa? Master Spa Parts has it in stock and ready to ship! Our Macro Flat Filter PMA50-2002-F product is compatible with select models of the Master Spas® Legend Series, ranging from 1996 through 2003.

Order a Macro Flat Filter Cartridge from Master Spa Parts and save!

2.25" Flat Gasket

Temperature Sensor Mount. Used in older style Master Spas to secure the flow sensor to the spa. A new mount should always be installed when you are replacing your spa sensor unit.

This mount should fit with most sensors.

The Black Flat Pillow from Master Spa will match your original hot tub pillow.

Designed specifically for the Legend Series Master Spas and the Michael Phelps Swim Spas starting with the 2014 model, the Temperature Sensor Mount is a replacement part that will fit the temperature sensor (SKU : 801821). If you don’t see your model listed, it may still work – so please give our customer service a call!

Ozone Photo Sensor 

Designed specifically for 2015 Michael Phelps Swim Spas this sensor is a replacement for the sensor in your spa’s heating system allowing you to control the heat of your spa from the external control panel. If you don’t see your model listed, it may still work – so please give our customer service a call!

1/2 inch 316 SS Flat Washer

Control Pack MS20VS w/3rd Sensor

The Sensor, 24” x ¼” F/560 M7 is a high limit temp replacement sensor for the MAS560 sensor found in most Down East and Legend Series Master Spas.

Don’t let a broken sensor prevent you from your enjoying your spa when you want to.