Compatible DeLaval Duovac & Mono Pneumatic Float (987158-80) The Compatible DeLaval Duovac & Mono Pneumatic Float is a premium-quality replacement part designed to deliver accurate, reliable performance within DeLaval Duovac and Mono milking systems . Built for precision and durability , this float plays a vital role in maintaining correct air and vacuum control , ensuring smooth and efficient milking performance throughout each session. Constructed from robust, chemical- and moisture-resistant materials , this float is designed to withstand daily parlour conditions , frequent cleaning , and long-term use . Its precision-moulded design provides consistent, responsive movement , enabling accurate regulation of vacuum levels and preventing system overflow , air leaks , or pressure inconsistencies . The Compatible DeLaval Duovac & Mono Pneumatic Float is a direct-fit replacement for DeLaval part number 987158-80 , offering a cost-effective, dependable alternative to OEM parts. It is designed for easy installation , helping reduce downtime and simplifying routine maintenance while maintaining high milking efficiency and reliability . When correctly fitted, this float helps to: Maintain