Plast-O-Matic Series PRD Pressure Differential Regulators 1/4″ – 3″
Plast-O-Matic Series PRD Pressure Differential Regulators 1/4" - 3"
https://www.watercareproducts.com.sg/pressure-regulators-pressure-reducing-valves/plast-o-matic-engineering-valves-controls/plast-o-matic-series-prd-prdm-differential-pressure-regulators