Pentair Rainbow #203 Super-Flex Vacuum Head | R201388 Testing & Measurement Parts a critical safety feature that

a critical safety feature that makes sure you have firm footing on your way in and out of the water

Use 1 oz per 100 gallons of spa water per week

Maintains certain level of enzymes in water even when the pool is closed

Reemay 2040 polyester media — engineered to exact OEM dimensional tolerances for the Sta-Rite Posi-Clear PXC-150 and Waterway Plastics Pro Clean 150

8-wheel model in black and white with chrome handle

Pentair Rainbow #203 Super-Flex Vacuum Head | R201388 Testing & Measurement Parts a critical safety feature thatFeatures and Benefits: Factory set replaceable molded wheels and fasteners Includes covered weights and snap adapt handle with stainless steel wall hugging spring device