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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!

The CoverMate Easy cover lift is a traditional cover lift that is easy to install, extremely durable, and stylish!

This left cover piece for the CoverMate III cover lifter snaps into the fitted location on the left side and covers all the pieces found there.

*To determine if this is the correct replacement cover pieceyou need, look at your hot tub cover in the open position. While facing the spa and open cover lifter, the left cover piece is on the left side.*

The Black Small Lounge Pillow fits with most Down East Spas to replace the lounge pillow originally made with older hot tubs (2003-2009).

Keep your water crystal clear with Spa Ease Natural & Clear, an enzyme that breaks down contaminants in your water!

Use this SilkBalance Clean Start Plumbing Line Cleaner to deep clean your spa once a year, and prior to initial usage. Within hours, this concentrated liquid rids your plumbing of deposits and residue.

The mineral therapy sport formula by Medicine Springs helps to speed up recovery of your muscles. Made from hot springs around the world – the compounds found in this water is truly healing.

One sport formula bag treats up to 400 gallons and will last up to 90 days! It has no impact on your plumbing, filters, or jets. Treat your hot tub the same as you did prior to using this product.

The 78" x 66" Hot Tub Cover (Long-edge Fold) is an exact Master Spa Factory OEM replacement. It is specifically designed to fit your Master Spas® hot tub. This cover is extremely energy efficient, as it's made of a 1.5-pound foam density, six-inch thick foam insulation (which tapers to 4-inches along the sides), and a full-length heat seal. It has been upgraded to include two rubber grip handles and is made of a high quality marine-grade vinyl covering that is mildew treated.

Note: This particular cover folds along the longer 78" edge. If you need a cover with these same dimensions (66" x 78") but that folds along the short edge, try our 66 × 78 Inch Hot Tub Cover (Short-edge fold).

The mineral therapy joint formula by Medicine Springs help to sooth your joints and help with any joint conditions! They’re made from hot springs in the Western US and Japan that were historically said to help issues like arthritis and fibromyalgia.

One joint formula bag treats up to 400 gallons and will last up to 90 days! It has absolutely no impact on your plumbing, filters, or jets. Treat your hot tub the same as you did prior to using this product.

With Scumball, you can remove all those body oils, suntan lotions, and oily scented products that form a scum line on the surface of your pool or spa. These scum-beating balls can absorb up to 40 times their own weight with all those oils and lotions!

MP800 Color Screen Topside Control Panel for MS40 (V/N 50305)

Replacement plastic screw kit. This is the replacement screw kit for the CoverMate III