Sundance® Spas 6540-507S MicroClean® Filter Series 880 Brand_Kozy Heat If you've measured your fill

If you've measured your fill water and the calcium hardness reading came back at 150 ppm

Effective Length 36"

Rinse thoroughly in the shower before entering the water

What sets this shock apart is what it doesn't do: it doesn't raise your chlorine residual

Sundance® Spas 6540-507S MicroClean® Filter Series 880 Brand_Kozy Heat If you've measured your fillSundance Spas 6540 507S MicroClean Filter Series 880 Overview Replacement filter for your Sundance Spa. Sundance Spas MicroClean II filter uses advanced, triple layer pleated material to provide superior filtration for crystal clear water. The system efficiently traps larger particles in the upper layers of the filter and smaller particles in the lower layers. This filter is open on both ends. What's in the Box 1 x Sundance Spas 6540 507S MicroClean