Mist & Cool MC601 5 Micron In-Line Misting System Water Filter. This high-efficiency filter is designed with polyphosphate crystals to prevent scale buildup, making it ideal for use in areas with hard water. Features: – 5 Micron filtration to protect nozzles from clogging. – Polyphosphate crystals for scale inhibition. – Maximum Pressure: 125 psi. – Maximum Flow: 1 GPM. – Universal in-line installation with clear flow direction indicators. – Recommended replacement every 6 months for optimal performance. – Made in USA. Condition: New condition with original protective caps intact. Please refer to photos for label details and specifications.